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Internet # 206641829

Model # 25374

Store SKU # 1002043935

3/4 in. Tankless Water Heater Valves Installation Kit

$125.10
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  • Push to Connect system, quick and easy installation in seconds
  • Works on any combination of Copper, PE-RT, CPVC, PEX Pipe
  • DIY Kits provide everything you need to complete the job
  • View More Details

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Return this item within 90 days of purchase.

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Product Details

About This Product

The SharkBite Tankless Water Heater Service Valves Kit connects tankless water heaters to your water supply and allows for easy control and hassle-free maintenance. Included in the package are Hot and Cold Valves and a Pressure relief valve. The Valves connect to the Tankless water Heater with a 3/4 in. IPS Female Connection and then connect to water distribution system with SharkBite Push-to-Connect connections compatible with copper, PEX, and CPVC. Slim-fit valve design is a perfect fit for recessed or cover boxes.

Highlights

  • Heavy duty forged brass valves with full port main flow channel
  • SharkBite push-to-connect connections simplify installation and are compatible on copper, PEX, and CPVC
  • Color coded handles for easy identification of hot and cold valves
  • 3/4 in. pipe insertion depth: 1-1/8 in.
  • Rated to 150 psi
  • 3-way ball valve design provides single turn handle for ease of use in tight spaces
  • Includes hot and cold valves and a pressure relief valve
  • Slim-fit valve design for recessed or covered boxes
  • Compatible with PEX, copper, CPVC and PE-RT pipe
  • No special tools, crimping, glue or soldering is needed
  • Shop all SharkBite Fittings
  • Return Policy
  • California residents
     see Prop 65 WARNINGS

Product Information

Internet # 206641829

Model # 25374

Store SKU # 1002043935

Specifications

Dimensions: H 8.267 in, W 6.496 in, D 3.97 in

Dimensions

Product Depth (in.)

3.97 in

Product Height (in.)

8.267 in

Product Width (in.)

6.496 in

Details

Finish Family

Bronze/Copper Metallic

Material

Brass

Pack Size

1

Returnable

90-Day

Warranty / Certifications

Manufacturer Warranty

For warranty information on this product, please call our Internet Customer Service Center at 1-877-700-4242.

Questions & Answers

Can these be used with Pex-A expansion tubing? If If read correctly on the Sharkbite website, it would have to be slightly expanded first. I'm just trying to verify. Thank You
ByDec 29, 2025
0 Answer | 
Answer This Question

" Tankless Water Heater Valve Kit utilizes push-to-connect fittings and threaded unions, a" threaded attaching to heater and threaded for pressure valve. why dont you explian if need thread tape for these? no useful info in "guide"
ByDec 4, 2025
1 Answer | 
Answer This Question

Hello ccrr, If there is anything we can do to improve your experience, please reach out to our Technical Support Team at 1- 877-700-4242 so we can assist.

By|Dec 5, 2025
    0/0


    Does the shark fittings hook up to the re199ip with out soldering?
    ByAug 23, 2025
    1 Answer | 
    Answer This Question

    Yes. The SharkBite 25374 Tankless Water Heater Valve Kit utilizes push-to-connect fittings and threaded unions, allowing direct connection to the Rinnai RE199iP without soldering.

    By|Sep 25, 2025
      0/0


      Will this kit work with the Rinnai RE140iP? https://www.homedepot.com/p/Rinnai-High-Efficiency-Non-Condensing-5-3-GPM-Residential-140-000-BTU-Interior-Propane-Gas-Tankless-Water-Heater-RE140iP/322407668
      ByJun 10, 2025
      1 Answer | 
      Answer This Question

      Hello, Thank you for contacting SharkBite. Our Tankless Water Heater Valves are designed for universal use. Please contact Rinnai manufacturer's to confirm compatibility. If you have further questions, please call us at 1-877-700-4242. Thank you

      By|Jun 12, 2025
        0/0


        Does this actually work to flush the system? Wouldn’t a 3-way valve be needed to circulate the flush through the system? This looks like it’s only an open/close valve? How do you flush the system with only this?
        ByFeb 23, 2025
        1 Answer | 
        Answer This Question

        ​The SharkBite 25374 Tankless Water Heater Installation Kit is designed to facilitate maintenance tasks, including flushing your tankless water heater system. The kit includes hot and cold water valves equipped with drain outlets, allowing for effective flushing without the need for additional three-way valves. By connecting a pump to these drain outlets, you can circulate a descaling solution through the water heater, effectively flushing out mineral buildup

        By|Aug 28, 2025
          0/0

          (2)

          This water heater need a pressure valve?
          ByJan 6, 2025
          1 Answer | 
          Answer This Question

          Hi, The 3/4 in. Tankless Water Heater Valves Installation Kit comes with a pressure valve. If you have any more questions or if we can be of further assistance please call tech support at 877-700-4242. Kind regards,

          By|Jan 10, 2025
            0/0


            Does the tankless water heater not come with these?
            ByDec 7, 2023
            1 Answer | 
            Answer This Question

            Hi Glen, It depends on the tankless manufacturer if the valve kit is included. If you have any more questions about our products you can call tech support at 877-700-4242. Kind regards,

            By|Dec 7, 2023
              0/0


              can I use the ports on the side to flush the heater if I turn the red and blue levers off
              ByNov 15, 2023
              1 Answer | 
              Answer This Question

              Hi, The SharkBite 3/4 in. Tankless Water Heater Valves Installation Kit can be used for servicing your tankless water heater. You will isolate the heater with the red and blue handles. Once the heater is isolated you can then service your heater by connecting your hoses to the caps on the tankless flush kit. If you have any more questions about your tankless flush kit you can call tech support at 877-700-4242. Kind regards,

              By|Nov 16, 2023
                0/0


                Viewing 1-8 of 17

                Customer Reviews

                4.3 out of 5

                • 4.3 out of 99 reviews
                • 75% recommend this product
                Filter by:
                Showing 1-10 of 99 reviews
                Leaks
                Leaks at the manufacturer seam for the compression portion. The connection to PEX is good. But connection to body failed day one.
                by
                Response from RWC SupportJan 23, 2026
                Thank you for taking the time to review our product. If it is within the return timeframe for Home Deport, we recommend replacing the valve with them. If it is outside of that window, please reach out to our Technical Support Team at ustechsupport@rwc.com SharkBiteCashAcme
                  Product looks sturdy. However, this set was designed and advertised as companion parts to a tankless water heater install. Water heaters typically connect with flex hose (2 female 3/4” fittings) . This set ended in shark bytes which seem to be made for solid 3/4” copper, There were no other sets offered but this set did not meet my needs so I had to return to Home depot and piece together a valve set (hot, cold and relief) No big deal and maybe shark bytes offers a set with my needed connections but not at my location. Totally could be “pilots error” . Hot water in the end so I am happy.
                  by
                  • Verified Purchase
                  Cold Water Nut is Leaking
                  Great kit but cold water side is leaking. I will have to go buy another kit and return this on.
                  by
                    Well worth the price
                    It's easy to install. I purchase a new tankless water heater after my old water heater started leaking. I like that you can push in the CPVC service pipes and done, no welding. I definitely recommend this valve kit.
                    by
                      1 found this review helpful
                      Love all of the SharkBite products, especially the push-to-connect fittings. This was exactly wha...
                      Love all of the SharkBite products, especially the push-to-connect fittings. This was exactly what I needed to install to maintain my tankless water heater. These isolation valves allow me to flush my heater without interrupting the supply to the rest of my shop. Highly recommended!
                      by
                      • DIY
                      • Verified Purchase
                      • Recommended
                      This customer chose to rate the product and not provide text.
                      by
                      • Verified Purchase
                      The Shark fittings were defective. They both leaked. When I uninstalled I noticed they were missing a part inside which prevented them from sealing. Replaced with a new set which worked perfectly. Be careful to inspect them before installing. The second one was flawless. I would give them five stars. I will be inspecting all my shark bites in the future before installing.
                      by
                      Response from RWC SupportDec 26, 2025
                      Hello Charles,
                      Thank you for reaching out! We are sorry to hear about the difficulty you experienced with the SharkBite 3/4 in. Tankless Water Heater Valves Installation Kit and we understand your frustration. We will take this feedback into consideration when reviewing the product for updates. If there is anything we can do to improve your experience, please reach out to our Technical Support Team at 1- 877-700-4242 so we can assist. Warmest Regards, SharkBiteCashAcme
                      • Verified Purchase
                      Perfect for what was needed.
                      by
                      • Verified Purchase
                      This customer chose to rate the product and not provide text.
                      by
                      Sharkbite has no business making tankless valves!! It leaked at the push connect and the brass transition.
                      by
                      • Verified Purchase
                      Showing 1-10 of 99 reviews