LASYEND Upgraded 595926 Solid Brass Sensor Valve — Compatible with Watts Premier 500800/500805 & Grundfos UP Comfort

Overview

The LASYEND 595926 sensor valve blends durable, all-brass construction with smart flow control to support hot water recirculation setups. Forged brass delivers strong, heat-ready performance while resisting corrosion and mineral buildup, helping your system stay reliable across seasons and usage patterns. This component is designed to sit near the sink, at the fixture farthest from your water heater, where it makes a meaningful difference in how quickly hot water reaches the tap.

Compatibility and Fit

Engineered as a direct replacement for Watts Premier 367010 bypass valves and fully compatible with Watts Premier 500800/500805 recirculating pumps. It also works with Grundfos UP Comfort Series models (for example UP15-10SU7P/TLC 1/25 HP). The under-sink footprint keeps the installation tidy while maintaining a clean, secure connection with standard piping.

How It Works

The valve uses thermostatic control to sense when hot water lines have cooled. When a drop in line temperature is detected, it redirects cooled water back to the heater. As the lines warm back up, the valve closes around 98°F, delivering warm water faster to your tap and reducing water waste along the way. This behavior can contribute to a more responsive hot-water experience in daily routines.

Benefits and Real-World Use

• Reduces wait time for hot water at the faucet, improving daily comfort during morning routines or after longer stints away from home.
• Supports resource efficiency by limiting water waste and potentially lowering energy use tied to reheating water.
• Solid brass construction provides durability, robust heat transfer, and long-term reliability in hot-water circuits.

• Leak-resistant, threaded design minimizes the chance of drips and keeps operation quiet over years of use.
• DIY-friendly installation that fits standard 1-1/2 inch threaded pipes and most common pipe types without extra parts.
• Compact under-sink footprint designed for easy retrofit in existing recirculation loops.

Installation At a Glance

Install under the sink at the fixture farthest from the heater. Expect a straightforward setup with no special tools required, and follow online tutorials for guidance. Indoor use only with traditional tank-style water heaters; not intended for tankless or outdoor systems.

Maintenance and Care

Keep threads clean and fittings snug to maintain a reliable seal. The brass construction and tight tolerances help resist common wear and environmental buildup, contributing to stable performance with regular system checks.