There are plenty of options available while buying tankless water heater valve kits in the market right now, and if you're confused regarding which one to go for, This page is just for you.

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Our Top Picks:

Best Overall: Buy: Rheem Tankless Water Heater Valve Kit READ REVIEW

Best For Hot Water Heater: Buy: Libra Supply Tankless Water Heater Valve Kit READ REVIEW

Best With Great Seller: Buy: Itanso Tankless Water Heater Valve Kit READ REVIEW

Best For High Quality: Buy: Iococee Tankless Water Heater Valve Kit READ REVIEW

Best For Cold Set: Buy: Webstone Tankless Water Heater Valve Kit READ REVIEW

Best For Temperature Range: Buy: Cmi Tankless Water Heater Valve Kit READ REVIEW

Best For Customer Service: Buy: Vav Tankless Water Heater Valve Kit READ REVIEW

Best Value For Money: Buy: Hydro Master Tankless Water Heater Valve Kit READ REVIEW

Best Overall: Rheem Tankless Water Heater Valve Kit

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The Rheem Tankless Water Heater Valve Kit should be able to handle its purpose and duties with ease. The rheem tankless water heater valve kit worked perfectly and it is black. Make sure this fits by entering your model number. These hot and cold water service valves simplify installation and service by combining multiple valves and connections in a single part.

The kit is super hot, it is made for good value and has a water heater design. And, it fits perfectly and it is designed for a great price. Most importantly, the rheem tankless water heater valve kit looks pretty good, is white and it is very compact.

Almost all buyers agree that the kit is how they flush the system to diagnose the problem. In addition, they say that the valve spontaneously opens up about 3-4 times per day, only for a few seconds at a time. Moreover, they say that the kit can be used on new install of Rinnai w/h from lowes. Without any doubt, this product passed the test and had very satisfied buyers eager to share their experience.

• This makes installation a snap.
• This has vent termination and it is great for customer service.
• This is not mentioned anywhere in the description.
• This has two colors of handles, as shown.

Best For Hot Water Heater: Libra Supply Tankless Water Heater Valve Kit

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For a low asking price, Libra Supply Tankless Water Heater Valve Kit has managed to overwhelm their customers by packing as many features as they could. The libra supply tankless water heater valve kit is made of quality material and works with all tankless water heaters with a 3/4'' MPT outlet. 100% leak tested, standard brass version, pressure relief valve included. And, the kit is important, works great and it works great.

The kit is built with excellent quality, is great for a great price, Its price is reasonable and it has a water heater design. Lastly, the libra supply tankless water heater valve kit is very happy and it is very professional.

Most buyers quickly discovered that the valve is easy to install and handle. In addition, they also found that the kit includes a pressure valve is a plus. In addition, they strongly agree that the kit comes with a union coupling on the heater side for easy service disconnect. With no doubts, this product passed the test and had very satisfied buyers eager to share their experience.

• This is a great replacement for the watt purge and balancing valve.
• Easy installation and compact design, fits tankless water heater with a 3/4'' MPT outlet.
• It is tough, it works well and has a good quality design.
• This comes with a relief valve and an easy drain for maintenance.

Best With Great Seller: Itanso Tankless Water Heater Valve Kit

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Best part: Itanso Tankless Water Heater Valve Kit costs comparatively little and it is available to ship in 24 hours. The itanso tankless water heater valve kit has broad applicability and it works as expected. Colored valve handles for easy identification of hot and cold water valves. The prv ( pressure relief valve ) needs to be installed to the hot water valve.

The kit is quality good, works well and it comes with good products. In addition, it comes with a roll of PTFE tape to avoid the leak. Most importantly, the itanso tankless water heater valve kit is reassemble, can be bought for good value and it works great.

Most buyers quickly discovered that the valve is easy to install and works like a charm. In addition, they also found that the valve is used to connect to the water heater. Moreover, they say that the outflow line from the pressure valve needs to be directed to a safe discharge location in case it ever operates due to over pressure, failure or routine testing. Overall, buyers found this to be one of the best valves for daily purposes.

• This is made from lead free heavy duty brass for years of usage.
• This provides a one-year guarantee against defects in materials and workmanship.
• This can be used on two tankless heater installs.
• This is crafted with great seller and it comes with great quality.

Best For High Quality: Iococee Tankless Water Heater Valve Kit

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We know from years of feedback from readers, amazon sellers, and family and friends what most people want in a convenient and appropriate valve. The Iococee Tankless Water Heater Valve Kit is exactly that - it's a simple valve that hits all the right notes. The iococee tankless water heatervalve kit has lead free certification, is great for high quality, It is great quality and has a good quality design. Install a full port ball valve for better flow rate. The 3/4 inch size tankless kit is suitable for most American residential use, including domestic and commercial tankless gas waterheater brands such as rheem, rinai, ecosmart, navien, noritz, takagi, bosch and so on.

Lastly, the iococee tankless water heater valve kit is our greatest pursuit. Additionally, it comes with a brass safety cap that provides easy maintenance.

Therefore, most customers agree that the kit is functionally comfortable and no one questions it.

• Colored valve handles for easy identification and use of hot and cold valves.
• Good brand reputation.

Best For Cold Set: Webstone Tankless Water Heater Valve Kit

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The Webstone line of valves comes in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. The Webstone Tankless Water Heater Valve Kit worked perfectly and it is very happy. Make sure this fits by entering your model number. In addition, it is designed for a great price, is great for high quality, it reads the instructions and has a good quality design.

Lastly, the webstone tanklesswater heater valvekit is stainless and it is very nice.

Almost all customers quickly discovered that the valve is great for yearly scale washouts. In addition, a few also found that the kit would work fine with the rinnai tankless heater. In addition, they strongly agree that the entire valve, removed the rubber gasket, and valve handle.

• 304 stainless steel wing handle for easy actuation of the main ball.
• This is not needed, the water heater comes with these parts.
• This makes installing and servicing tankless water heaters so easy.
• The kit includes a residential pressure relief valve (150 psi/200,000 btu).

Best For Temperature Range: Cmi Tankless Water Heater Valve Kit

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The Cmi Tankless Water Heater Valve Kit's material feels more premium than its price would suggest. The cmi tankless water heater valve kit comes with two valves for both hot and cold water and a pressure relief valve. This tankless water heater service valve kit enables you to install your tankless water heater unit properly with great ease. This kit has a jet sweeper nozzle ( a $ 6 value ), a water pressure gauge ( an $ 11 value ), and a roll of PTFE tape ( a $ 2.50 value ) included at no extra cost.

The kit is made of lead-free brass, which meets ANSI and nsf standards. Most importantly, the cmi tanklesswater heatervalve kit is designed for maximum pressure rating and it is good for temperature range.

Obviously, this valve passed the test and had very satisfied buyers eager to share their experience.

• Same/1 day handling time, using 1-3 days priority mail w.tracking # and insured.
• This tankless waterheater service valvekit is serviceable as its name suggests.
• Maximum pressure rating: 125 psi; temperature range: 40° to 180°f.

Best For Customer Service: Vav Tankless Water Heater Valve Kit

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The Vav Tankless Water Heater Valve Kit should be able to handle its purpose and duties with ease. The vav tankless water heater valve kit is easy to use and has a water heater design. The Vav 3/4 inch isolation kit involves hot and cold valves, 500wog & pressure relief valve (150 psi/200k btu), 1/4 colored valve handles for easy identification of hot and cold valves. The tankless kit works with all 3/4 inch npt threads and is suitable for most American residential usage, both commercial and residential gas tankless water heater brands such as noritz, rinnai, rheem, takagi and so on.

Most importantly, the vav tankless water heater valve kit is made for standard sizes, it can do for customer service and has a superior integrated design.

• A pressure relief valve is included for connection to the hot valve.
• Lot of satisfied buyers.

Best Value For Money: Hydro Master Tankless Water Heater Valve Kit

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Hydro Master is known for creating pragmatic and great value for money valves for people on the go, and its line of Hydro Master Tankless Water Heater Valve Kit definitely falls in line with that reputation. Further, it is easy to install and easy to change the connections with 2 pcs swt. Make sure this fits by entering your model number. Lastly, the hydro master tankless water heater valve kit includes a residential pressure relief valve (150 psi/500, 000 btu) and 2 pcs swt connections.

One customer says - "You will need to be able to use a torch to install. ". Almost all buyers opine that the kit is used to install a wall propane boiler/hot water heater. In short, buyers found this to be one of the best kits for daily purposes.

• Include a residential pressure relief valve (150 psi/500,000 btu) and 2 pcs swt connections.
• Lot of satisfied buyers.