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  • Camco Camper/RV Water Heater By-Pass Kit - Designed to By-Pass Camper Water Heater During RV Winterizing - Features 8-Inch Nylon Reinforced Hose with 2 Brass Valves (35953)
  • Camco 35953 8" Supreme Permanent By-Pass Kit for 6 Gallon Tank - Lead FreeMerchant Video
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Camco Camper/RV Water Heater By-Pass Kit - Designed to By-Pass Camper Water Heater During RV Winterizing - Features 8-Inch Nylon Reinforced Hose with 2 Brass Valves (35953)

4.4 out of 5 stars (523)
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Size: 8 " By-Pass Kit

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About this item

  • Save Antifreeze: Camco’s Supreme Permanent RV Hot Water Heater Bypass Kit efficiently bypasses your camping water heater, saving 6-10 gallons of RV antifreeze each winterizing cycle. This cuts costs & simplifies RV winterization.
  • Compatibility: Perfect for 6-gallon RV water heater tanks, this camper accessory fits 1/2″-14 NPT tapered threads and includes durable brass fittings for dependable use.
  • Install Permanently: Mount this camper essential once to eliminate repeated disconnections and speed up every RV winterizing session.
  • Complete Kit: This RV accessory includes (1) 8″ crimp-proof bypass hose, (2) 3-way brass bypass valves with shutoff, and Teflon tape.
  • Built-In Flow Indication: Valve handles include flow indicators, providing quick visual confirmation of open or bypass positions for easy operation.

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This item: Camco Camper/RV Water Heater By-Pass Kit - Designed to By-Pass Camper Water Heater During RV Winterizing - Features 8-Inch Nylon Reinforced Hose with 2 Brass Valves (35953)
$24.45
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From the manufacturer

About Camco Manufacturing

Camco; Camco Manufacturing; RV; RVing; Camping; RV accessories; camping accessories
Our Brands:

Our diverse flagship brands include: Rhino, TastePURE, Hydro Life, TST, Power Grip, Eaz-Lift, Life is Better at the Campsite, FasTen, Black Boar, Currituck, Kuuma, Olympian, TRAC, Crooked Creek and Camping Essentials.

Camco makes quality products for RVing, boating, camping, towing, tailgating, grilling and more. Our products help take your passion for the outdoors to the next level.

At heart, Camco is a small company with big aspirations. Since 1966, we have earned a reputation for providing superior goods with high customer approval.

We also work with inventors, entrepreneurs and small businesses to bring innovative products into the marketplace.

At our core, we believe in manufacturing exceptional products and delivering superior service – all while providing a great customer experience.

Our company headquarters is located in Greensboro, North Carolina. Camco also has numerous manufacturing facilities in the United States and around the globe.

Explore your outdoor passion with Camco. Great memories are only an adventure away.


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Camco Camper/RV Water Heater By-Pass Kit - Designed to By-Pass Camper Water Heater During RV Winterizing - Features 8-Inch Nylon Reinforced Hose with 2 Brass Valves (35953)


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Product Description

Meet the effortless way to winterize your RV and save money every season. Camco’s Supreme Permanent RV Water Heater Bypass Kit lets you route antifreeze around your water heater, so you don’t waste gallons of camper antifreeze each time you winterize. Instead of disconnecting lines or juggling fittings, you install it once and enjoy simple, clean winterizing year after year. Designed for 6-gallon RV water heater tanks, this kit fits seamlessly into your setup and helps protect your plumbing without overusing antifreeze. Built for durability and easy flow, the kit includes a no-kink bypass hose, two 3-way brass bypass valves with shutoff, plus Teflon tape. Each valve handle features clear flow indication, giving you a quick visual cue so you always know which way the water—or RV anti freeze—is moving. The brass fittings use tapered threads for a secure, reliable connection, and the provided Teflon tape helps you achieve a tight, no-leak seal. If you’re tired of wasting antifreeze, dreading extra disconnections, or second-guessing valve positions, this permanent bypass kit brings confidence and convenience to your winterizing routine. Install it once, turn the handles with certainty, and keep more antifreeze where it belongs: in your hot water heater.

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Top Brand: Camco

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Customer reviews

4.4 out of 5 stars
523 global ratings

Customers say

Customers find the water heater bypass kit to be well-built and easy to install, with clear instructions provided. The product makes winterizing easy, and customers consider it worth the price, with one mentioning it saved a significant amount of RV antifreeze. While the quality and fit receive positive feedback, some customers report issues with leakage and valve reliability.
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51 customers mention functionality, 42 positive, 9 negative
Customers find that the water heater bypass kit works well and is a solid performer, with one customer specifically noting its effectiveness for blowout purposes and another mentioning no reduction in water flow.
...All in all it's a good kit and works great. I would recommend this kit...Read more
...The new ones fit and worked perfectly. They seem to be of better quality than the original ones. The hose was the correct length.Read more
Does the job & isn't too difficult to install....Read more
worked great. easy to install.Read more
42 customers mention quality, 31 positive, 11 negative
Customers find the water heater bypass kit to be well-built and of good quality.
This kit was of good quality and easy to install. It arrived quickly, which helped me get my RV winterized before it go too cold.Read more
It was a good product and the manufacturer tryied to include everything you would need BUTTTTT you will find yourself going to the home improvement...Read more
...Crappy quality of bypass valves. I had to modify the bypass hose so cant return. Will throw in the trash and try another brand.Read more
Was a great product, but I returned it because my camper had one installed alreadyRead more
41 customers mention installation, 36 positive, 5 negative
Customers find the water heater by-pass kit easy to install and appreciate that the instructions are spot on, with one customer noting it can be installed without special tools.
This kit was of good quality and easy to install. It arrived quickly, which helped me get my RV winterized before it go too cold.Read more
I originally wrote that this fit perfectly and was am easy install. After 2 years, one of the vales started leaking around the stem....Read more
This bypass was a perfect fit and very easy to install...they evidently were made for my water heater which is an Atwood 9600 series....Read more
Good quality valves, and easy to install and use. Don't risk it, winterize your rig, and make your spring start up a breeze.Read more
19 customers mention winterizing, 19 positive, 0 negative
Customers find the water heater by-pass kit makes winterizing easy, with one mentioning it saved a significant amount of RV antifreeze.
made it easy to winterize the only thing is that I put it on in the wrong direction had to get mail and female ends to change the flowRead more
This does make winterizing so much easier. The brass fittings are rugged and allow closing off of the inlet as well as the outlet of the heater....Read more
Good quality valves, and easy to install and use. Don't risk it, winterize your rig, and make your spring start up a breeze.Read more
Really helps to winterize the water system in my camper in the fall. Great bypass to water heater. Easy to install.Read more
14 customers mention fit, 13 positive, 1 negative
Customers are satisfied with how the water heater by-pass kit fits together.
I originally wrote that this fit perfectly and was am easy install. After 2 years, one of the vales started leaking around the stem....Read more
This bypass was a perfect fit and very easy to install...they evidently were made for my water heater which is an Atwood 9600 series....Read more
It went in easier than I was hoping, didn't have a lot of space for wrenches.Read more
Fits just right to the existing layout.Read more
13 customers mention value for money, 11 positive, 2 negative
Customers find the water heater kit worth its price, with one mentioning it's cheaper than fixing cracked pipes and another noting it saves time and money.
Well built, easy to install, great value.Read more
...Much easier and cheaper than fixing cracked pipes.Read more
Great kit at a good price. Valves are brass. Kit is easy to install....Read more
Great buy. I was replacing my thankless with a six gal water heater, so there was no bypass already installed....Read more
19 customers mention leakage, 5 positive, 14 negative
Customers report issues with the water heater's valve leaking.
...to say now I need to replace the plastic elbow fitting due to them leaking. Not the products fualt just plastic junk.Read more
...old valves were corroded, one was stuck and the other one leaked through the handle seal when it was turned. The new ones fit and worked perfectly....Read more
...over this time I used rectorseal and blue monster Teflon tape now no leaks....Read more
...Now after just one season of use, one of the valves is leaking at the stem. Apparently the quality control on these valves has become very poor.Read more
11 customers mention valve reliability, 1 positive, 10 negative
Customers report issues with the water heater bypass kit's valves, with multiple customers noting that they do not fully engage or stop flow, and one customer mentioning that the hose kinks badly.
I had some problems reattaching hoses with the valves in place, the plastic pipes are fairly ridged, so it takes a little work, but great when it's...Read more
The valves wouldn’t seal to keep antifreeze from going into my water heater. Total waste of money and time to install....Read more
The bypass valve would not seal and leaked air during 50psi air test of water system. Crappy quality of bypass valves....Read more
...to 1/4 of a 1/4" ID, I'd have tolerated that but... BOTH valves did NOT stop flow, and there for are USELESS....Read more
Installed with new plumbing.
5 out of 5 stars
Installed with new plumbing.
I installed the water heater bypass and the winterize bypass off the pump. For the water heater bypass I made a new supply line since the one with the kit was a bit to long and I have the tools to make a perfect one. The first time I installed the bypass I used Teflon tape and I had some light leaking at the bottom of the valve, I removed the valve and started over this time I used rectorseal and blue monster Teflon tape now no leaks. There are three ports on the valve, port A goes into the water heater port B is for the bypass hose and port C which is labeled and the female port where the original fitting from water heater should fit. Then reconnect the supply lines. For the bypass off the pump I installed it hand tight and a new shurflo strainer. I have no leaks and it looks like it will work well this winter.
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Top reviews from the United States

  • 5 out of 5 stars
    It works
    Reviewed in the United States on March 16, 2026
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  • 5 out of 5 stars
    Should’ve come with this from the factory
    Reviewed in the United States on May 8, 2025
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    Simple and effective, easy install for a feature that my RV ‘should’ have come with from the factory. Highly recommend to ease the headache of winterizing.

    One person found this helpful
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  • 4 out of 5 stars
    Easy to install and works great.
    Reviewed in the United States on May 14, 2021
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    I used this bypass kit on my tow behind RV to replace the old bypass that used three valves (plastic) and lots of 90* elbows and other plastis parts. One of the old valves blew a rubber o-ring. This new kit was simple and easy to install and use. Make sure you measure the length of hose you'll need between the new valves as mine was a smidge short and had to be stretched slightly. Also, one of the valve handles broke off during install but they turn so easily its not that big of a problem. All in all it's a good kit and works great. I would recommend this kit...

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  • 5 out of 5 stars
    Exactly what I needed
    Reviewed in the United States on January 22, 2024
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    The old valves were corroded, one was stuck and the other one leaked through the handle seal when it was turned. The new ones fit and worked perfectly. They seem to be of better quality than the original ones.

    The hose was the correct length.

    One person found this helpful
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  • 5 out of 5 stars
    Easy install
    Reviewed in the United States on September 21, 2025
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    Super easy install. Fits nice in tight spaces

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  • 3 out of 5 stars
    May need adapters to install
    Reviewed in the United States on November 17, 2022
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    Thisould be easy to install backwards as my water heater had male fittings and the male fitting on the valve must go towards the heater. I installed it at the other end of the feed lines and it worked fine. To install as illustrated you would need two double male and two double female brass or pvc fittings. The instructions are in tiny print I needed a magnifying glass to read. The valves are high quality and worked well.

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  • 5 out of 5 stars
    Installed with new plumbing.
    Reviewed in the United States on June 12, 2024
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    I installed the water heater bypass and the winterize bypass off the pump. For the water heater bypass I made a new supply line since the one with the kit was a bit to long and I have the tools to make a perfect one. The first time I installed the bypass I used Teflon tape and I had some light leaking at the bottom of the valve, I removed the valve and started over this time I used rectorseal and blue monster Teflon tape now no leaks. There are three ports on the valve, port A goes into the water heater port B is for the bypass hose and port C which is labeled and the female port where the original fitting from water heater should fit. Then reconnect the supply lines. For the bypass off the pump I installed it hand tight and a new shurflo strainer. I have no leaks and it looks like it will work well this winter.

    Installed with new plumbing.
    Installed with new plumbing.
    Installed with new plumbing.
    Installed with new plumbing.
    Installed with new plumbing.
    Installed with new plumbing.
    5 out of 5 stars
    Installed with new plumbing.
    Reviewed in the United States on June 12, 2024

    I installed the water heater bypass and the winterize bypass off the pump. For the water heater bypass I made a new supply line since the one with the kit was a bit to long and I have the tools to make a perfect one. The first time I installed the bypass I used Teflon tape and I had some light leaking at the bottom of the valve, I removed the valve and started over this time I used rectorseal and blue monster Teflon tape now no leaks. There are three ports on the valve, port A goes into the water heater port B is for the bypass hose and port C which is labeled and the female port where the original fitting from water heater should fit. Then reconnect the supply lines. For the bypass off the pump I installed it hand tight and a new shurflo strainer. I have no leaks and it looks like it will work well this winter.

    One person found this helpful
    Sending feedback...
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    Thanks, we'll investigate in the next few days.
  • 5 out of 5 stars
    Switched over to tankless water heater
    Reviewed in the United States on October 31, 2024
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    My new water heater doesn’t have a drain, I have to take it inside the house after winterizing. YOU HAVE TO HAVE THIS BYPASS KIT! DONT PUT ANTIFREEZE IN YOUR WATER HEATER!!! It will never have clean hot water again. You put this in then bypass to put antifreeze in it.

    Switched over to tankless water heater
    5 out of 5 stars
    Switched over to tankless water heater
    Reviewed in the United States on October 31, 2024

    My new water heater doesn’t have a drain, I have to take it inside the house after winterizing. YOU HAVE TO HAVE THIS BYPASS KIT! DONT PUT ANTIFREEZE IN YOUR WATER HEATER!!! It will never have clean hot water again. You put this in then bypass to put antifreeze in it.

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Top reviews from other countries

  • 5 out of 5 stars
    bye pass valve kit
    Reviewed in Canada on August 4, 2025
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    fit perfect and works good

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  • 4 out of 5 stars
    Exactly what was needed
    Reviewed in Canada on July 1, 2023
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    Everything you need to replace/install on your hot water tank. Didn't take more than half an hour. Would recommend.

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  • 5 out of 5 stars
    Works great!
    Reviewed in Canada on June 3, 2014
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    Simple to install, should fit most hot water tanks.

    Well made, solid fittings, with good valves.

    Excellent value for your money.

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  • 5 out of 5 stars
    Arrived early and was what was ordered
    Reviewed in Canada on May 3, 2024
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    Was in good condition, fit as expected.

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  • 5 out of 5 stars
    Looks good will install and spring
    Reviewed in Canada on December 18, 2017
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    Looks good will install and spring

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Product Summary: Camco Camper/RV Water Heater By-Pass Kit - Designed to By-Pass Camper Water Heater During RV Winterizing - Features 8-Inch Nylon Reinforced Hose with 2 Brass Valves (35953)

From Camco

4.4 out of 5 stars, 523 ratings

Customer reviews

100+ viewed in past month

Price

No featured offers available

Other sellers

Other sellers

About this Item

  • Save Antifreeze: Camco’s Supreme Permanent RV Hot Water Heater Bypass Kit efficiently bypasses your camping water heater, saving 6-10 gallons of RV antifreeze each winterizing cycle. This cuts costs & simplifies RV winterization.
  • Compatibility: Perfect for 6-gallon RV water heater tanks, this camper accessory fits 1/2″-14 NPT tapered threads and includes durable brass fittings for dependable use.
  • Install Permanently: Mount this camper essential once to eliminate repeated disconnections and speed up every RV winterizing session.
  • Complete Kit: This RV accessory includes (1) 8″ crimp-proof bypass hose, (2) 3-way brass bypass valves with shutoff, and Teflon tape.
  • Built-In Flow Indication: Valve handles include flow indicators, providing quick visual confirmation of open or bypass positions for easy operation.

Product Description

Meet the effortless way to winterize your RV and save money every season. Camco’s Supreme Permanent RV Water Heater Bypass Kit lets you route antifreeze around your water heater, so you don’t waste gallons of camper antifreeze each time you winterize. Instead of disconnecting lines or juggling fittings, you install it once and enjoy simple, clean winterizing year after year. Designed for 6-gallon RV water heater tanks, this kit fits seamlessly into your setup and helps protect your plumbing without overusing antifreeze. Built for durability and easy flow, the kit includes a no-kink bypass hose, two 3-way brass bypass valves with shutoff, plus Teflon tape. Each valve handle features clear flow indication, giving you a quick visual cue so you always know which way the water—or RV anti freeze—is moving. The brass fittings use tapered threads for a secure, reliable connection, and the provided Teflon tape helps you achieve a tight, no-leak seal. If you’re tired of wasting antifreeze, dreading extra disconnections, or second-guessing valve positions, this permanent bypass kit brings confidence and convenience to your winterizing routine. Install it once, turn the handles with certainty, and keep more antifreeze where it belongs: in your hot water heater.

Options Available

Size

  • 8 " By-Pass Kit
  • 8 " By-Pass Kit (Pack of 4)
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Important Information

Wattage

0 watts

Bulb Voltage

0 volts

Proposition 65 Warning for California Consumers

WARNING: This product can expose you to chemicals including styrene which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov

Proposition 65 Warning for California Consumers

WARNING: This product can expose you to chemicals including lead which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov

Proposition 65 Warning for California Consumers

WARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to www.P65Warnings.ca.gov/passenger-vehicle

Proposition 65 Warning for California Consumers

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Proposition 65 Warning for California Consumers

WARNING: Cancer - www.P65Warnings.ca.gov

Product Guidance & Documents

Installation Manual (PDF)

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