--- product_id: 369999420 title: "LFN45BM1 3/4" brand: "watts" price: "€ 240.53" currency: EUR in_stock: true reviews_count: 5 url: https://www.desertcart.be/products/369999420-lfn45bm1-3-4 store_origin: BE region: Belgium --- # Adjustable pressure 25-75 psi for water savings Lead-free brass body for durability Max pressure 400 psi for robust protection LFN45BM1 3/4 **Brand:** watts **Price:** € 240.53 **Availability:** βœ… In Stock ## Summary > πŸ’§ Control your flow, save your future. ## Quick Answers - **What is this?** LFN45BM1 3/4 by watts - **How much does it cost?** € 240.53 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/369999420-lfn45bm1-3-4) ## Best For - watts enthusiasts ## Why This Product - Trusted watts brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **High-Pressure Ready:** Handles up to 400 psi, perfect for commercial and residential demands. - β€’ **Effortless Maintenance:** Removable stainless steel strainer keeps your system clean and efficient. - β€’ **Precision Pressure Control:** Easily adjustable 25-75 psi range to optimize water flow and reduce waste. - β€’ **Smart Thermal Expansion Bypass:** Protects your system from pressure spikes, ensuring longevity and peace of mind. - β€’ **Built to Last with Lead-Free Brass:** Durable, eco-conscious construction that safeguards your plumbing and health. ## Overview The WATTS LFN45BM1 3/4-inch lead-free water pressure reducing valve offers adjustable pressure control from 25 to 75 psi, with a maximum working pressure of 400 psi. Featuring a durable lead-free brass body, removable stainless steel strainer, and thermal expansion bypass, it ensures efficient water management and system protection for commercial, industrial, and residential plumbing applications. ## Description 3/4 IN Lead Free Water Pressure Reducing Valve, FPT x FPT, Adjust 25-75 psi, Max Work 400 psi_This 3/4 inch lead free water pressure reducing valve is designed to reduce incoming water pressure to protect plumbing systems and reduce water consumption for commercial, industrial and residential applications. The easy maintenance assembly consists of a lead free cast copper silicon alloy body construction, threaded female inlet and outlet connection, stainless steel integral strainer, thermoplastic seat module, thermal expansion bypass, and a sealed spring cage for waterworks pit installations. The temperature range is 33 to 180 degrees F (0.5 to 82 degrees C). Suitable for up to 400 psi (27.6 bar), the pressure range can be adjusted from 25 to 75 psi (172 to 517 kPa) with the standard setting at 50 psi (345 kPa)._Serviceable in line_Sealed spring cage for accessible outdoor or pit installations_Thermoplastic seat and cage_Integral stainless steel strainer removable for cleaning_Specifications_Adjustable Reduced Pressure Range 25 to 75_Adjustable Reduced Pressure Range-BAR 1.7 to 5.2_Body Material Lead Free Cast Copper Silicon Alloy_Brand Watts_Buy American Act Compliant YES_Corrosion Resistant Coating No_Disc Material Elastomer_EAN 098268332391_Gauge Option No Gauge_High Pressure Reduced Pressure Range Does Not Apply To Product_High Pressure Reduced Pressure Setting Does Not Apply To Product_Inlet Connection Size 3/4 IN_Inlet Connection Type Female Threaded_Inlet Thread Type NPT_Lead Free YES_Maximum Operating Temperature-Fahrenheit 180_Maximum Working Pressure-BAR 27.60_Maximum Working Pressure-PSI 400_Minimum Temperature - Celsius 0.50_Minimum Temperature-Fahrenheit 33_Outlet Connection Size 3/4 IN_Outlet Connection Type Female Threaded_Outlet Thread Type NPT_Part Number 0009477_Series LFN45B_Standard Reduced Pressure Setting-BAR 3.40_Standard Reduced Pressure Setting-PSI 50_Strainer Yes_Strainer Material Stainless Steel_Thermal Expansion Bypass Yes_Trim Material Does Not Apply To Product_Valve Style Standard ## Features - Lead-free brass body construction Helps to reduce water consumption Integral stainless steel strainer is removable for cleaning Pressure range is suitable up to 400 PSI (27.6 BAR) MFG Model #: 3/4 LFN45BM1 MFG Part #: 0009477 ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B004JJ5FYE | | Date First Available | 26 November 2012 | | Is Discontinued By Manufacturer | No | | Item Model Number | 3/4LFN45BUM1 | | Manufacturer | Watts | | Product Dimensions | 6.2 x 14.3 x 18.75 cm; 821 g | ## Product Details - **Brand:** WATTS - **Exterior finish:** Brass - **Inlet connection size:** 0.75 Inches - **Item dimensions L x W x H:** 6.2 x 14.3 x 18.7 centimeters - **Material:** Brass ## Images ![LFN45BM1 3/4 - Image 1](https://m.media-amazon.com/images/I/71JDDqEvpPS.jpg) ## Questions & Answers **Q: Will this valve body hold up to a coastal environment mounted outdoors and in ground level box?** A: No this will NOT work. **Q: how much pressure drop this valve has as soon as one of faucets opens up** A: I Think You’re Confusing PSI Pressure Per Square Inch, And GPM Gallons Per Minute... The Watts Pressure Reducer Comes Factory Set At 50 PSI... Most Homes Have Between 60-70 PSI From Either Your Water Utility, Or Your Well... **Q: Does this 3/4” prv come with any o rings?** A: Yes, it comes with 1 union and 1 o-ring, not 2!! **Q: Can i adjust pressure on this valve?** A: Yes, it does allow you to adjust pressure by turning the top adjustment screw. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect drop-in replacement for a N35B 3/4" pressure reducer *by on Reviewed in the United States 25 March 2020* Arrived 2 days early. It was easy to install once I managed to remove the old unit. I used teflon tape on the threaded pipe output and a little silicone grease on the input o-ring. No leaks. Preset pressure was 60 psi. Works perfectly and less expensive than local options. ### ⭐ No Union Collar *by on Reviewed in Canada 6 February 2025* Pretty hard to install this PRV without a union collar which is shown in all three pics. ### ⭐⭐⭐⭐⭐ Missing O- Rings But right part itself fit perfect *by on Reviewed in the United States 6 June 2026* Missing the O-Rings had to use old ones 🀞 but other than that it's a exact fit and delivered early. ## Frequently Bought Together - Watts 3/4 LFN45BM1 Valve, 3/4" Pressure Reducing NPT Threaded Female Inlet x NPT Female Outlet - MEASUREMAN 0-200 PSI Water Pressure Gauge, 2-1/2'' Dial, Hose bib Pressure Gauge, Home Water Pressure Tester, Durable 3/4” Hose Thread, Water Pressure Gauge for Home --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.be/products/369999420-lfn45bm1-3-4](https://www.desertcart.be/products/369999420-lfn45bm1-3-4) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-08-26*