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

Based on 723 reviews
Condition: New
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$52.98
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Availability: In Stock.
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Arrives Thursday, Nov 5
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At a glance

Condition
New
Size
3/4 in
Model
LUG8HVZ609
Dimensions
3.94 x 5.91 x 0.79 in
Weight
160 g
Material
Brass
Inlet Connection Size
0.75 in

Features 5

  • Package include: 3/4 Inch Isolation Kit involves hot and cold valves 500WOG with 1/4 red and blue handles, equipped with full port ball valve for better flow rate
  • Easy to use: Tankless water heater repair valve 500WOG, red and blue valve handle, easy to identify hot and cold valves
  • Material: Components are certified lead-free brass, Meets all federal and state standards regarding lead content in drinking water system components. You will also find CSA certification on the water pipe and gas pipe to prove its authenticity
  • Standard size: The tankless kit works with all 3/4 inch size is suitable for most American residential usage, both residential and commercial gas tankless water heater brand such as Noritz, Rinnai, Rheem, Takagi, Navien and so on

Description

3/4 Inch Isolation Kit involves hot and cold valves 500WOG with 1/4 red and blue handles, equipped with full port ball valve for better flow rate. The components are certified lead free. Meets all federal & state standards for lead levels in drinking water system components. You can also find the CSA certification on the pressure relief valve to prove its authenticity. The tankless kit works with all 3/4 inch size is suitable for most American residential usage, both residential and commercial gas tankless water heater brand such as Noritz, Rinnai, Rheem, Takagi, Navien and so on. Thickened brass body, gravity forging, one-piece forged brass body can effectively prevent any leakage or dripping, the main isolation valve group has passed a leak-free test before leaving the factory ,and can be used for a long time.

Specs 26

Material Brass
Brand Hourleey
Item dimensions L x W x H 3.94 x 5.91 x 0.79 inches
Exterior Finish Brass
Inlet Connection Size 0.75 inches
Inlet Connection Type Full port
Maximum Operating Pressure 500 psi
Number of Ports 2

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If you place your order now, the estimated arrival date for this product is: Thursday, Nov 5

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.

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Top Amazon Reviews


Very well made!
Size: 3/4 Inch
These devices are absolutely essential for tankless water heater applications. They greatly help facilitate the necessary servicing that "Should" be done to them. It also provides an integrated and reliable means to shutoff and isolate the "hot and cold" lines at the water heater, so that the water can continue to be used throughout the house without the worry of back-flushing the hot waterline, through a mixer valve commonly found within modern faucets, and flooding the house in the event that the heater has to be removed for servicing. This particular valve is made to a very high standard of quality, and will likely last for a very long time without fail. I would place it on the same level of quality (if not higher) as some of the more expensive household name brands available at the big box stores. The kit comes with a union, on each valve, that utilizes a flat rubber gasket for sealing. nothing about this appears to be proprietary or hard to obtain in the event that they might need to be replaced. I have installed many of these throughout the years, and will now always keep one of these on my shelf ready to be installed. I am very happy with this item. ... show more
Reviewed in the United States on June 15, 2025 by Philip D.

Good
Size: 3/4 Inch
The Hourleey 3/4 Inch IPS Isolator Tankless Water Heater Service Valve Kit has been a game-changer for my home. This remarkable product not only ensures a seamless water heater installation but also provides peace of mind with its built-in pressure relief valve. From the moment I installed it, I could feel the quality of the clean brass construction. It's clear that Hourleey prioritizes durability and reliability. The kit's 3/4-inch IPS size is perfect for my needs, and the isolator function makes servicing my tankless water heater a breeze. I can confidently say that this product has exceeded my expectations. It's a must-have for anyone looking to enhance their water heater setup. I can't imagine going back to my old valve kit after experiencing the convenience and performance of the Hourleey Isolator Tankless Water Heater Service Valve Kit. I'm truly impressed! ... show more
Reviewed in the United States on January 28, 2024 by Sergej M.

Great price and works well
Size: 3/4 Inch
Was a bit concerned having read a few negative reviews, but gave it a shot since most are positive and Amazon is easy to deal with in case I'd have to return. Some reviewers complained about leaking. I did have one of the threads drip a little under pressure, but tightening it up solved the problem. Just make sure you're using thread seal tape where needed, tighten everything well and you'll be fine. There's also no need to over tighten. Functionally, all the valves felt good, nothing about the kit felt flimsy or cheap. Amazon delivers quickly, what else can you ask for? Would recommend for professionals or advanced DIYers. ... show more
Reviewed in the United States on October 22, 2021 by Boris

NOTE VALVE PORT!
Size: 3/4 Inch
Quality valves - good value for the money. The ONLY complaint I had is the advertising pictures. The hot (red) valve I received has the over-pressure port 180 degrees out from the main water cutoff. There was not enough clearance between the wall to install the overpressure valve while keeping the main valves aligned. By twisting the valve orientations, it worked - but it looks ugly. I wish I had paid closer attention to the porting alignment of this valve set. Other than this, the valve works great and is of good quality. ... show more
Reviewed in the United States on October 19, 2022 by vic

You can turn off either side and drain the heater
Size: 3/4 Inch
Easy to install and I think it's a must for tankless outdoor units
Reviewed in the United States on April 25, 2026 by RRob

Happily surprised -
Size: 3/4 Inch
Ordered then realized I’d need to add the safety valve which would require an addition T and addition fitting - but when the valves arrived this was all part of this valve set (not shown in the photos) pleasant surprise that saves you significant cost in the extra brass fittings. Installed directly to the Tankless HWH then to home plumbing using 18” braided SS flex lines to PEX - top collet rotates allowing easy valve alignment and a simple solid seal - valves bodies are cast/forged from single piece of brass, so no points to leak/fail - tested the clean out valves, and used them to bleed off/out the air in the lines during the heater install - was impressed with quality - this was my 9th tankless hot water heater install and this is the best valve set I’ve used / found. ... show more
Reviewed in the United States on February 14, 2021 by L. K. Farnsworth

Was pleasantly surprised by the product quality.
Size: 3/4 Inch
They seem to be very good quality, stainless steel valve balls, with nylon bushings and brass body. It also isn't clear from the pics or description, but there are UNION connections to connect the valves to the water heater, which make it much easier to replace the water heater if needed. I was leery because description & pics are incorrect or not complete. The description and pics don't show the T&P valve port, but it's there on the hot water valve, just as it should be. One pic in the description shows the T&P valve and hot water valve connected in a completely wrong and unsafe way. Follow the directions in the box or hire a plumber. I'm very happy & was pleasantly surprised by the unions and overall quality. I will be ordering again. ... show more
Reviewed in the United States on February 13, 2022 by LGM

Worked very well
Size: 3/4 Inch
Great service valves for the price. Just as good as any other “big name” brands.
Reviewed in the United States on November 10, 2025 by RyanW
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