Thermal Bypass Sensor Valve – Compatible with watts 500800, 500805, grundfos UP Comfort & Most Hot Water Recirculating Pumps – 304 SS, Includes 2 x 12" Hoses – 3-Yr Warranty
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Thermal Bypass Sensor Valve – Compatible with watts 500800, 500805, grundfos UP Comfort & Most Hot Water Recirculating Pumps – 304 SS, Includes 2 x 12" Hoses – 3-Yr Warranty

4.3/5
Product ID: 701847570
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Details

  • Material
    Stainless
  • Brand
    Frutlait
  • Item dimensions L x W x H
    6.69 x 1.97 x
  • Exterior Finish
    Stainless
  • Inlet Connection Size
    0.5 Inches
  • Inlet Connection Type
    Cross Linked
💧Instant Hot Water Delivery
♻️Water & Energy Conservation
⚙️304 Stainless Steel Durability

Description

🔥 Upgrade your flow, save water, and never wait again!

  • ECO FRIENDLY EFFICIENCY - Reduces water waste and energy consumption, lowering your bills while helping the planet.
  • INSTANT HOT WATER ACCESS - Eliminates wait time by pushing cool water back to the heater, delivering hot water in seconds.
  • SEAMLESS SYSTEM COMPATIBILITY - Works flawlessly with Watts 500800, 500805, Grundfos UP Comfort & more for effortless integration.
  • PREMIUM 304 STAINLESS STEEL BUILD - Corrosion-resistant and built to last, ensuring long-term reliability and performance.
  • HASSLE FREE INSTALLATION SUPPORT - Includes 2 x 12" PEX hoses and backed by a 3-year warranty with responsive customer service.

The Frutlait Thermal Bypass Sensor Valve is a high-quality 304 stainless steel component designed to optimize hot water recirculating pump systems. Compatible with popular models like Watts 500800/500805 and Grundfos UP Comfort, it delivers instant hot water by efficiently redirecting cool water back to the heater. This eco-friendly valve reduces water waste and energy use, comes with two 12-inch PEX hoses for easy installation, and is backed by a 3-year warranty for dependable performance.

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Specifications

MaterialStainless Steel
BrandFrutlait
Item dimensions L x W x H6.69 x 1.97 x 1.02 inches
Exterior FinishStainless Steel
Inlet Connection Size0.5 Inches
Inlet Connection TypeCross Linked Polyethylene
Outlet Connection TypePEX
Number of Ports4
Outlet Connection Size0.5 Inches
Specification MetCE
Valve TypeLift Check Valve
ManufacturerFrutlait
Item Weight1.41 pounds
Product Dimensions6.69 x 1.97 x 1.02 inches
Country of OriginChina
Item model numberWP596816
Color367010 sensor valve kit
StyleShuts off at 100°F
Item Package Quantity1
Included ComponentsComfort Valve
Batteries Included?No
Batteries Required?No

Have a Question? See What Others Asked

Is this sensor valve compatible with my Watts hot water recirculating pump?
Q: How is this different from the original plastic sensor valve?
Is this for a complete system or just a replacement part?
Will this reduce my wait time for hot water?
Does it work with systems that don’t have a return line?

Reviews

4.3

All from verified purchases

M**E

would buy again

great replacement for my grundfos that stopped working

D**T

So far, so good.

So far working just like the Watts pump I had previously however, I don't like the military time dial and the fact that it was missing the connector slip nut to the water heater connection. I had to make one. Other than that, seems to work fine.

A**R

Small Improvement To My Mornings

Installed this to cut down on the time (and water) wasted waiting for the shower or sink to heat up in the mornings. It’s made a noticeable difference, hot water reaches the tap much faster now. The installation process was straightforward.The kit came with everything needed, and the instructions were easy to follow, even without plumbing experience.The pump is quiet when it’s running, and the built-in timer gives you control over when the system is active, which helps avoid unnecessary energy use. I like that you can set it for peak usage times to make it more efficient. The build quality is sturdy and the valve responds accurately to temperature shifts. Overall, it’s a useful addition if you’re looking to streamline water usage and reduce wait time.

L**N

Sturdy Metal Upgrade with Trade-Offs

I’ve always wondered why Watts and Grundfos thermal bypass valves were plastic, so this metal one is a nice alternative. It’s rated to close the valve at 104°F, while Watts and Grundfos valves close at 95°F. That means it stays open longer, allowing more hot water into the cold line—good for keeping hot water ready but could lead to more mixing. Kind of a trade-off depending on what you prefer! It does come with the lines and hardware, so all you need is a crescent wrench to install it, which is a nice touch.

C**E

Works great

Comes with a lot of parts and adaptors.

J**Y

I think it's helping

I have a bathroom that was added on to my house. It has its own plumbing run from the center of the house, about 50 feet away. It would always take a full 1 minute to get hot water to the sinks! I have been considering options to improve that for the last 8 years, from a point of use water heater to circulating pumps. This little device is supposed to help by trickling a little hot water into the cold line to keep the hot line moving a little.Installation was easy, but I had to buy 4 new hoses for half the price of the device alone. I was worried about it being plastic, but it is a fiberglass reinforced plastic which helps with durability. As long as the faucet is being used regularly, the hot water does arrive quicker. But I have two faucets in my bathroom so if the other one is used the device doesn't do its thing. I'm not completely thinking this is the solution I need, but it's the least expensive option and worth trying out for a while.

C**W

Does the job well

This hot water recirculating pump works well. It cuts way down on the time required to get hot water running through the faucet in the morning.

R**1

Works as designed. No problems or issues. That's good.

I have several of this style thermal bypass valves I the house. Some are big name valves, some are second name. This ‘Frutlait OEM 595926 Replacement Comfort Valve Thermal Bypass Valve for Hot Water Recirculating’ works as well as any other valve in the system.That’s good enough for me. It’s an OK value, a little pricy for what it is. For a few dollars more, you can order all stainless steel.

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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€ 143.33

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Thermal Bypass Sensor Valve Compatible With Watts 500800 500805 Grundfos | Desertcart Belgium