Watts 88004111 Valve 326010-701 Complete Installation Kit: Ships with

Complete Installation Kit: Ships with essential mounting grommets

Marine Grade Construction: Built with high-grade materials to resist corrosion in saline or high-humidity environments

this interlock switch replacement serves as a direct OEM component for Armstrong

Industrial-Grade Construction: Built to withstand the constant thermal expansion and contraction cycles typical of high-efficiency Lennox heating systems

OEM Compatibility: Exact replacement for York S1-026-42600-000

Watts 88004111 Valve 326010-701 Complete Installation Kit: Ships withThe Watts 88004111, also recognized by technicians as the LF009M3 QT FS, is a 3 4 inch Reduced Pressure Zone (RPZ) backflow preventer assembly designed for high hazard cross connections. This unit features a heavy duty lead free bronze body and incorporates two independent check valves with an intermediate relief valve. Built for continuous pressure applications, it excels in protecting potable water supplies from backsiphonage and backpressure in