---
product_id: 256808148
title: "Grundfos 595926 Valve, Black"
brand: "grundfos"
price: "HK$1867"
currency: HKD
in_stock: true
reviews_count: 5
url: https://www.desertcart.hk/products/256808148-grundfos-595926-valve-black
store_origin: HK
region: Hong Kong
---

# Prevents cold water runoff 1.5-inch threaded fitting Plastic durable build Grundfos 595926 Valve, Black

**Brand:** grundfos
**Price:** HK$1867
**Availability:** ✅ In Stock

## Summary

> 💧 Say goodbye to cold water wait—upgrade your flow, upgrade your life!

## Quick Answers

- **What is this?** Grundfos 595926 Valve, Black by grundfos
- **How much does it cost?** HK$1867 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/256808148-grundfos-595926-valve-black)

## Best For

- grundfos enthusiasts

## Why This Product

- Trusted grundfos brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Lightweight:** Sleek 15.24 x 5.08 x 2.54 cm design fits discreetly under your sink.
- • **Effortless Installation:** Swap in minutes—no plumber needed, saving time and money.
- • **Optimized Hot Water Flow:** Installed furthest from heater to deliver instant hot water, cutting wait times drastically.
- • **Trusted Grundfos Quality:** Reliable replacement valve compatible with UP Comfort Series pumps.
- • **Seamless Cold Water Control:** Eliminates cold water runoff for efficient water use and less waste.

## Overview

The Grundfos 595926 Valve is a precision-engineered replacement valve designed for UP Comfort Series recirculator pumps. Featuring a 1.5-inch threaded plastic build, it installs easily under the sink at the fixture furthest from the water heater to prevent cold water runoff, ensuring faster hot water delivery and reducing water waste. Lightweight and compact, this valve is a must-have upgrade for any modern home seeking efficiency and comfort.

## Description

Replacement Comfort Valve for Grundfos UP15-10SU7P/TLC Comfort Series 1/25 HP Recirculator. The Comfort Valve is installed under the sink at the fixture furthest from the water heater. Eliminates cold water runoff at the faucet.

Review: When we bought our house 18 years ago, the builder installed a Grundfos comfort hot water circulator pump. Other than learning how to set the timer, I never paid any attention to how it functioned. Years ago, hot water started running through the cold-water faucet line, such that if we wanted cold water, we needed to wait for it to flow through the pipes. That wasn't a big enough deal to investigate and remediate, so we lived with it. Then, recently, at times, when the cold water was running in one of our master bathroom sinks, the water would abruptly stop flowing, as though something had suddenly obstructed the water line. For the first time in 18 years, I looked at the plumbing in the cabinet beneath that sink and discovered that this gizmo had been installed. I did some digging and discovered that this valve was likely the reason for our years-long problem with our cold water flow. I found the valve on desertcart for a (relatively / comparatively) reasonable price, and it was delivered the next business day. It took me no more than five minutes to swap it, which simply entailed moving the existing four water lines from the old valve to the new one. Everything had been tightened snuggly by hand, so I didn't even really need a wrench. Looking at the old valve, it was 100% clear that the interior components had failed. When I turned on the water after installing the new valve, everything worked like a charm for the first time in years: At least so far, hot water has been flowing from only the hot water faucets, cold water has been flowing from the cold water faucets, and the cold water has not abruptly stopped flowing in the master bathroom sink. I now wish I'd looked into it a long time ago. That said, although the price on desertcart was upwards of $20 (35%-ish) lower than what I'd seen at other stores, after actually seeing and handling the part, I'm still surprised by how expensive it is "for what it is." It's plastic, and the interior components appear to be cheap flimsy plastic, akin to what you might find on the interior of a mid-range shower head. I guess I take some consolation in finding a "relatively" good price here on desertcart and that I didn't pay a plumber a hefty markup or for labor to install it. Also, because the Grundfos pump itself is now beyond its 18th year, I suspect that we'll need to replace the pump before we need to replace this valve again.
Review: Was I a skeptic…. Yep. This thing works perfectly. I went from waiting 50 sec before getting hot water to less than 10

## Features

- Installed under the sink at the fixture furthest from the water heater.
- Items comes with plastic material.
- Threaded at 1-1/2 inches
- Use with UP comfort series pumps
- Prevents cold water runoff

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00128BIUU |
| ASIN  | B00128BIUU |
| Batteries Included? | No |
| Batteries Required? | No |
| Color | Black |
| Customer Reviews | 4.2 4.2 out of 5 stars (764) |
| Customer reviews | 4.2 4.2 out of 5 stars (764) |
| Date First Available | 24 August 2012 |
| Date First Available  | 24 August 2012 |
| Included components | VALVE |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 63.5 g |
| Item model number | 595926 |
| Item model number  | 595926 |
| Manufacturer | Grundfos |
| Manufacturer  | Grundfos |
| Material | Plastic |
| Measurement System | inch |
| Number Of Pieces | 1 |
| Part number | 595926 |
| Pattern | Valve |
| Power source type | Ac/dc |
| Product Dimensions | 15.24 x 5.08 x 2.54 cm; 63.5 g |
| Product Dimensions  | 15.24 x 5.08 x 2.54 cm; 63.5 g |
| Style | Circulator |

## Product Details

- **Brand:** Grundfos
- **Colour:** Black
- **Material:** Plastic
- **Product dimensions:** 15.2L x 5.1W x 2.5H centimeters
- **Style:** Circulator

## Images

![Grundfos 595926 Valve, Black - Image 1](https://m.media-amazon.com/images/I/51zca1vL7HL.jpg)

## Questions & Answers

**Q: Will this device work with Watts  500800 pump?**
A: The device comes with the 500800 if I read the web correctly. So, yes it will work

**Q: WHEN SENSOR VALVE CLOSES, DOES PUMP SHUT OFF?**
A: The recirculating pump runs continuously when turned on.  The valve simply controls when hot water begins to seep into the cold water line which is what makes the hot water always available at faucets with the valves installed.  Depending on the pump you have, you can either program it to run 27/7 or as I do, program the timer on the pump to be on at certain times and off otherwise.  Mine is programed to be on from 7 am to 9 am, then again from 9 pm until 11 pm.  I also can override the timer when I need hot water at unanticipated times. If you run the pump continuously, it will greatly increase the amount of energy used to keep the water heated.  Hope that helps.

**Q: i have installed the recert pump and have it running 24/7, there is excellent hot water but i am also getting warm/hot water on the cold water side?**
A: Hi Mark, What is happening to you is absolutely normal, since the mentioned valve discharges al the hot water line into the cold one, and as in your case you have it running all the time, eventually the cold water line fills with mild hot water. You have two problems there, 1.- the pump consumes electricity on a constant basis and 2.- since the heat on the cold water line cools down eventually, you end up more electrical power, since the heater ends up cooling down and swithing on once more, to keep up with the energy wasted in maintaining both hot and cold water lines warm...What I did was simple; I installed a wireless remote control in both bathrooms and every time I need to use either, I press the ON button, and it takes about 40-60 seconds to warm-up the hot water lines. Before I leave the facilities I press the OFF button and that's it. These remote controls are dirt cheap in any electronic dealer (I got mine from China), and it works like a champ.Best regards

**Q: how long is the warrenty on the valve?**
A: We have replaced this valve about every 2 years and it’s annoying.  Our circulation pump runs about 16 hours a day.  There is one valve under a bathroom sink at the furtherest of the house for hot water recirculation.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by T***R on 24 January 2023*

When we bought our house 18 years ago, the builder installed a Grundfos comfort hot water circulator pump. Other than learning how to set the timer, I never paid any attention to how it functioned. Years ago, hot water started running through the cold-water faucet line, such that if we wanted cold water, we needed to wait for it to flow through the pipes. That wasn't a big enough deal to investigate and remediate, so we lived with it. Then, recently, at times, when the cold water was running in one of our master bathroom sinks, the water would abruptly stop flowing, as though something had suddenly obstructed the water line. For the first time in 18 years, I looked at the plumbing in the cabinet beneath that sink and discovered that this gizmo had been installed. I did some digging and discovered that this valve was likely the reason for our years-long problem with our cold water flow. I found the valve on Amazon for a (relatively / comparatively) reasonable price, and it was delivered the next business day. It took me no more than five minutes to swap it, which simply entailed moving the existing four water lines from the old valve to the new one. Everything had been tightened snuggly by hand, so I didn't even really need a wrench. Looking at the old valve, it was 100% clear that the interior components had failed. When I turned on the water after installing the new valve, everything worked like a charm for the first time in years: At least so far, hot water has been flowing from only the hot water faucets, cold water has been flowing from the cold water faucets, and the cold water has not abruptly stopped flowing in the master bathroom sink. I now wish I'd looked into it a long time ago. That said, although the price on Amazon was upwards of $20 (35%-ish) lower than what I'd seen at other stores, after actually seeing and handling the part, I'm still surprised by how expensive it is "for what it is." It's plastic, and the interior components appear to be cheap flimsy plastic, akin to what you might find on the interior of a mid-range shower head. I guess I take some consolation in finding a "relatively" good price here on Amazon and that I didn't pay a plumber a hefty markup or for labor to install it. Also, because the Grundfos pump itself is now beyond its 18th year, I suspect that we'll need to replace the pump before we need to replace this valve again.

### ⭐⭐⭐⭐⭐ Review
*by L***M on 2 May 2024*

Was I a skeptic…. Yep. This thing works perfectly. I went from waiting 50 sec before getting hot water to less than 10

### ⭐⭐⭐⭐⭐ Review
*by M***A on 15 September 2025*

todo bien

## Frequently Bought Together

- Grundfos 595926 Valve, Black
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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-01-23*