Premium Brass Construction: Forged from solid brass for strength and superior heat transfer, this component delivers long-lasting reliability in water systems. Seamless Compatibility with Top Pumps: Direct replacement for Watts Premier 367010 bypass valves and fully compatible with Watts 500800/500805 recirculating pumps, plus Grundfos UP Comfort Series models (e.g., UP15-10SU7P/TLC 1/25 HP). Designed for under-sink installation at the fixture farthest from your water heater. Instant Water & Resource Efficiency: Thermostatically controlled to open when water lines cool, redirecting cold water back to the heater. Closes automatically at 98°F to deliver hot water quickly, reducing wait times, water waste, and energy costs. DIY-Friendly Installation in 20 Minutes: No special tools or extra parts required. Installs under the sink with standard 1-1/2-inch threaded pipes (compatible with all pipe types). Leak-Proof Threaded Design: Features precision-machined brass threads for a tight, secure fit, minimizing leakage risks. The robust construction withstands water pressure and temperature fluctuations, ensuring continuous, quiet operation. Color: Black. Material: Plastic + Copper. Package Contents: 1 x 595926 Copper Sensor Valve. Only the above package content is included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. Measurement tolerance: ±1–3 cm.