--- product_id: 256808148 title: "Grundfos 595926 Valve, Black" brand: "grundfos" price: "723 zł" currency: PLN in_stock: true reviews_count: 5 category: "Grundfos" url: https://www.desertcart.pl/products/256808148-grundfos-595926-valve-black store_origin: PL region: Poland --- # Compatible with UP Comfort Series pumps Eliminates cold water runoff 1.5-inch threaded connection Grundfos 595926 Valve, Black **Brand:** grundfos **Price:** 723 zł **Availability:** ✅ In Stock ## Summary > 🚿 Hot water on demand, because waiting is so last decade. ## Quick Answers - **What is this?** Grundfos 595926 Valve, Black by grundfos - **How much does it cost?** 723 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/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 - • **Seamless Integration:** Threaded 1.5-inch design fits effortlessly with UP Comfort Series pumps for a sleek, professional setup. - • **Durable Plastic Build:** Lightweight yet robust plastic material ensures long-lasting performance without corrosion worries. - • **Energy & Water Savings:** Prevents cold water runoff, reducing waste and lowering utility bills—smart living for the eco-conscious. - • **Instant Hot Water Access:** Slash wait times from nearly a minute to under 10 seconds—luxury you deserve. - • **Under-Sink Discreet Installation:** Hidden convenience at the fixture furthest from your water heater—no clutter, just comfort. ## Overview The Grundfos 595926 Valve is a precision-engineered, 1.5-inch threaded valve designed for seamless installation under sinks farthest from your water heater. Made from durable plastic and compatible with UP Comfort Series pumps, it eliminates cold water runoff, delivering hot water faster and reducing waste. Trusted by professionals and homeowners alike, this valve transforms your daily water experience into an efficient, eco-friendly luxury. ## 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: Worth the expense. - I had a plumber install a Grundfos circulating pump on my hot water heater a few years back and I installed my first Grundfos inline valve in our master bath, resulting in a substantial improvement in the time it took for hot water to arrive for the shower. Rather than using the half-bath sink, I use our utility sink in the laundry room multiple times a day to wash my hands after working in the garage, the yard or to just to wash my hands after being out and about, but again, I had to wait a couple of minutes for the hot water to circulate up from the hot water tank . I finally got around to ordering another Grundfos inline valve and with some difficulty, I installed it in the utility sink cabinet. WHAT A DIFFERENCE! It is almost as if I have hot water on demand. I should have done this much sooner. One pump at the hot water tank will support multiple locations throughout your house where the valves are installed. The pump, the installation, the valves and the stainless flex lines I used for each valve were not cheap. HOWEVER, the results are amazing. Review: Amazing - 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 | | Brand | Grundfos | | Brand Name | Grundfos | | Connector Type | Threaded | | Customer Reviews | 4.3 out of 5 stars 767 Reviews | | Exterior Finish | Plastic | | Exterior finish | Plastic | | Global Trade Identification Number | 00632514086777 | | Included Components | VALVE | | Inlet Connection Size | 1.5 Inches | | Inlet Connection Type | Threaded | | Inlet connection size | 1.5 Inches | | Inlet connection type | Threaded | | Item Dimensions | 15.2 x 5.1 x 2.5 centimeters | | Item Type Name | VALVE | | Item Weight | 0.14 Pounds | | Item dimensions L x W x H | 15.2 x 5.1 x 2.5 centimeters | | Manufacturer | Grundfos | | Manufacturer Part Number | 595926 | | Material | Plastic | | Material Type | Plastic | | Model Number | 595926 | | Number of Items | 1 | | Number of Pieces | 1 | | Number of Ports | 2 | | Outlet Connection Size | 1.5 Inches | | Outlet Connection Type | Threaded | | Thread Size | 1.5 inches | | UPC | 735090530761 570039525268 786714807486 632514086777 632514079670 850007341121 | | Unit Count | 1.0 Count | | Valve Type | Valve | ## Product Details - **Brand:** Grundfos - **Exterior finish:** Plastic - **Inlet connection size:** 1.5 Inches - **Item dimensions L x W x H:** 15.2 x 5.1 x 2.5 centimeters - **Material:** Plastic ## Images ![Grundfos 595926 Valve, Black - Image 1](https://m.media-amazon.com/images/I/61MRxPHoV5L.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 ### ⭐⭐⭐⭐⭐ Worth the expense. *by D***R on 26 March 2025* I had a plumber install a Grundfos circulating pump on my hot water heater a few years back and I installed my first Grundfos inline valve in our master bath, resulting in a substantial improvement in the time it took for hot water to arrive for the shower. Rather than using the half-bath sink, I use our utility sink in the laundry room multiple times a day to wash my hands after working in the garage, the yard or to just to wash my hands after being out and about, but again, I had to wait a couple of minutes for the hot water to circulate up from the hot water tank . I finally got around to ordering another Grundfos inline valve and with some difficulty, I installed it in the utility sink cabinet. WHAT A DIFFERENCE! It is almost as if I have hot water on demand. I should have done this much sooner. One pump at the hot water tank will support multiple locations throughout your house where the valves are installed. The pump, the installation, the valves and the stainless flex lines I used for each valve were not cheap. HOWEVER, the results are amazing. ### ⭐⭐⭐⭐⭐ Amazing *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 ### ⭐⭐⭐⭐⭐ todo bien *by M***A on 15 September 2025* todo bien ## Frequently Bought Together - Grundfos 595926 Valve, Black - Water Line Adapter, 4 PCS Pipe Fittings in 1/2" Female to 3/8" Male Reducer Adapter, Compression Fitting for Kitchen Bathroom Faucet Supply Hose, Stop Valve Pipe Connector With Rubber Washer --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/256808148-grundfos-595926-valve-black](https://www.desertcart.pl/products/256808148-grundfos-595926-valve-black) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-09-13*