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3/4 Inch IPS Isolator Tankless Water Heater Service Valve Kit, with Pressure Relief Valve, Clean Brass

  • Based on 170 reviews
Condition: New
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Returnable until Jan 31, 2026

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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Feb 24
Order within 5 hours and 57 minutes
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Features

  • Package Include: 1 x hot isolation valves, 1 x cold isolation valves, 1 x pressure relief valve.
  • Easy to Use: The 3/4-inch IPS isolator tankless water heater service valves, with a 500wog rating, feature colored handles for effortless identification of hot and cold valves. The integrated drain valve comes with a brass safety cap for convenient maintenance, and the full-port ball valve ensures optimal flow rate.
  • Material: The components are made of certified lead-free brass, complying with all federal and state regulations for lead content in potable water system components. Additionally, the water and gas pipes bear CSA certification, attesting to their authenticity.
  • Widely Use: The tankless kit is compatible with all 3/4-inch sizes, making it suitable for most U.S. residential applications, as well as both residential and commercial gas tankless water heater brands, such as Noritz, Rinnai, Rheem, Takagi, Navien and so on.
  • Good Service: We strive to deliver excellent service that exceeds your expectations. Your satisfaction is our utmost priority, and we are pleased to offer superior products.

Material: Brass


Brand: LIULO TOOL


Item dimensions L x W x H: 3 x 4 x 5 inches


Exterior Finish: Brass


Inlet Connection Type: Full port


Outlet Connection Type: Full port


Maximum Operating Pressure: 500 Pound per Square Inch


Outlet Connection Size: 4 Inches


Specification Met: CSA


Manufacturer: LIULO TOOL


Material: ‎Brass


Brand: ‎LIULO TOOL


Item dimensions L x W x H: ‎3 x 4 x 5 inches


Exterior Finish: ‎Brass


Inlet Connection Type: ‎Full port


Outlet Connection Type: ‎Full port


Maximum Operating Pressure: ‎500 Pound per Square Inch


Outlet Connection Size: ‎4 Inches


Specification Met: ‎CSA


Manufacturer: ‎LIULO TOOL


UPC: ‎799174142318


Part Number: ‎Water Heater Service Valve Kit


Item Weight: ‎4.02 pounds


Product Dimensions: ‎3 x 4 x 5 inches


Item model number: ‎Water Heater Service Valve Kit


Size: ‎4 inches (W) x 3 inches (L) x 5 inches (H)


Color: ‎Brass


Included Components: ‎Brass


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: June 10, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Feb 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Perfect fit
Half the price of HD, Lowes good quality brass, fit my new on-demand water heater, easy installation
Reviewed in the United States on March 28, 2025 by BLong BLong

  • Great parts
Great fit and functional
Reviewed in the United States on April 13, 2025 by D OgawaAmazon Customer

  • Water clean out kit
Everything you need to hook up. Works great.
Reviewed in the United States on August 2, 2025 by Frank A Tindall

  • Great product.
Great product
Reviewed in the United States on November 11, 2025 by Jeremy

  • Good value
Installed on Rinnai tankless water heater. Easy installation. No leaks.
Reviewed in the United States on October 18, 2025 by kim chapman

  • NIce valves - great price
These are a good valve - they have nice machined threads, had no issues making them up. They do say lead free on the side, but I do not see the NSF/ANSI/CAN 372 number - so if you have a picky insector you might spend a few bucks more on the name brand model. These do have unions on them - I couldn't quite tell from the photos. Ball valves work great - some said they are too tight. They should be a little tight - they are new valves. I didn't have any issue. ... show more
Reviewed in the United States on October 19, 2024 by DavTech

  • Buy It!
Works great, great price
Reviewed in the United States on July 20, 2025 by John R. Meech

  • .
These are being held in case of a freezing situation like I noticed last year. One got a small crack in it. So these are spares.
Reviewed in the United States on November 22, 2025 by John

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