--- product_id: 449903862 title: "Watts LFMMVM1-UT 3/4'' Lead Free Thermostatic Mixing Shower Valve" brand: "watts" price: "1166.42 DT" currency: TND in_stock: true category: "Watts" url: https://www.desertcart.tn/products/449903862-watts-lfmmvm1-ut-3-4-lead-free-thermostatic-mixing-shower store_origin: TN region: Tunisia --- # Locking Adjustment Cap 3/4" Threaded Lead-Free Brass Body Adjustable Temp 80°F-120°F Watts LFMMVM1-UT 3/4'' Lead Free Thermostatic Mixing Shower Valve **Brand:** watts **Price:** 1166.42 DT **Availability:** ✅ In Stock ## Summary > 🌡️ Lock in your perfect shower temp — because comfort is non-negotiable! ## Quick Answers - **What is this?** Watts LFMMVM1-UT 3/4'' Lead Free Thermostatic Mixing Shower Valve by watts - **How much does it cost?** 1166.42 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/449903862-watts-lfmmvm1-ut-3-4-lead-free-thermostatic-mixing-shower) ## 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 - • **Built-In Protection:** Integral filter washers and check valves prevent backflow and maintain water purity. - • **Effortless Installation:** Threaded 3/4" inlet/outlet with union ends for quick, secure plumbing connections. - • **Lead-Free Durable Build:** Crafted from premium lead-free brass for safety and long-lasting reliability. - • **Certified Safety & Compliance:** Meets ASSE 1017, 1069, 1070 & IAPMO cUPC standards for peace of mind. - • **Precision Temperature Control:** Set your perfect shower temp between 80°F and 120°F with unmatched accuracy. ## Overview The Watts LFMMVM1-UT is a 3/4" lead-free thermostatic mixing valve designed for precise temperature control between 80°F and 120°F. Featuring a durable brass body, locking adjustment cap, and compliance with top industry safety standards (ASSE 1017, 1069, 1070, IAPMO cUPC), it ensures safe, reliable, and easy installation for both single and multiple fixture applications. ## Description Watts LFMMVM1-UT 3/4" Lead Free Thermostatic Mixing ValveSeries LFMMV Thermostatic Mixing Valves maintain and limit mixed hot water to a desired, selectable temperature. The LFMMV series can be set to any temperature between 80°F and 120°F with flow rates as low as 0.5 gpm and as high as 12 gpm (refer to capacity chart on back). This mixing valve series is listed under ASSE 1017 for valves used in hot water source applications, ASSE 1069 for single-pipe, tempered water applications and ASSE 1070 for valves used in individual or multiple fixture applications and also listed IAPMO cUPC. The LFMMVs feature Lead Free construction to comply with Lead Free installation requirements.Watts LFMMVM1-UT 3/4" Lead Free Thermostatic Mixing Valve Features: 3/4" Thread Lead Free Brass body construction Solid wax hydraulic principle thermostat assures dependable mixing of hot and cold water Thermostat controls both hot and cold water Union thread ends Adjustment cap with locking feature ASSE 1017 listed ASSE 1069 listed ASSE 1070 listed IAPMO cUPC listed Integral filter washers and check valves ## Features - Watts - LFMMVM1-UT - Thermostatic Mixing Valve ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B007VHHENG | | ASIN | B007VHHENG | | Brand Name | WATTS | | Connector Type | Threaded | | Customer Reviews | 4.5 4.5 out of 5 stars (83) | | Customer reviews | 4.5 4.5 out of 5 stars (83) | | Date First Available | 14 September 2014 | | Exterior Finish | Brass | | Inlet Connection Size | 0.75 Inches | | Inlet Connection Type | Thread | | Is Discontinued By Manufacturer | No | | Item Dimensions | 16 x 11.4 x 6.6 centimeters | | Item Weight | 1.01 kg | | Item model number | LFMMV-M1-UT | | Manufacturer | Watts | | Manufacturer | Watts | | Manufacturer Part Number | LFMMVM1-UT | | Material Type | Copper Alloy | | Maximum Pressure | 150 Pound per Square Inch | | Model Number | LFMMV-M1-UT | | Number of Items | 1 | | Number of Packs | 1 | | Number of Ports | 1 | | Outlet Connection Size | 0.75 Inches | | Outlet Connection Type | Union | | Product Dimensions | 16 x 11.43 x 6.6 cm; 1.01 kg | | Set Name | Adjustable with Locking Feature | | Size | 4.5 inches | | Specification Met | ASSE 1017, 1069, 1070, IAPMO | | Thread Size | 0.75 inches | | Thread Type | Threaded | | UPC | 098268451825 | | Unit Count | 1 Count | | Valve Type | Thermostatic Mixing Valve | ## Product Details - **Brand:** WATTS - **Exterior finish:** Brass - **Inlet connection size:** 0.75 Inches - **Item dimensions L x W x H:** 16 x 11.4 x 6.6 centimeters - **Material:** Copper Alloy ## Images ![Watts LFMMVM1-UT 3/4'' Lead Free Thermostatic Mixing Shower Valve - Image 1](https://m.media-amazon.com/images/I/61GVKmOuMGL.jpg) ## Questions & Answers **Q: What is the min./max. Pressure for both inlets? And is there a drop in outlet pressure?** A: 30-150 psi operating pressure. Negligible pressure drop. **Q: What is the min./max. hot water temp. inlet? and how it will work if the hot temp. drop below the min.?** A: Min/Max HW inlet temp= 120 to 180 degrees. If the HW inlet water temp is below 120 the valve will simply pass cold water. The max pressure for both inlets is 150 PSI. There is no listed minimum pressure. Pressure drop varies with flow- at 6 GPM flow the pressure drop is 10 PSI. **Q: My solar hot water will be feeding my electric tankless heater. This should drop the water from 180 to 120 degree before tankless heater right?** A: Yes- but a couple of cautions. The maximum outlet temperature setting is 120 degrees, and the maximum inlet hot water temp to get that 120 degrees is 180 degrees. The valve is rated to still function at 200 degree inlet temp but at anything over 180 you will likely end up with an outlet temp over 120. **Q: The temperature adjustment knob will not turn. Is there a lock or trick to this?** A: To adjust the setting of the valve, loosen locking cap screw with hex wrench, see Figure 3. Cap must be lifted 1/4" to adjust temperature. To increase the temperature, turn counterclockwise. To decrease temperature turn clockwise. 4. Lower handle and tighten screw. ## Frequently Bought Together - Watts - LFMMV-M1-UT - 3/4 Union Inlet Type Thermostatic Mixing Valve,No Lead Copper Silicon Alloy, 13 gpm - MEASUREMAN Tridicator, Thermo-Manometer Pressure Gauge, 2-1/2", 0-160psi/30-250 deg F, Stainless Steel Case, 1/4" NPT Back Mount - MEANLIN Stainless Steel Thermal Pressure Gauge 0-160Psi, 30-250F, 2.5" Face Dial, Liquid Filled, 1/4" NPT, Back Mount --- ## 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.tn/products/449903862-watts-lfmmvm1-ut-3-4-lead-free-thermostatic-mixing-shower](https://www.desertcart.tn/products/449903862-watts-lfmmvm1-ut-3-4-lead-free-thermostatic-mixing-shower) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-04*