OEM Compatibility: Guaranteed fit for Marvair systems requiring a 24" 4-blade fan blade

Rated for temperatures up to 180F

the Watts 0794089 ensures precise backflow preventer repair performance under varying hydraulic pressures

and feedback settings to match specific HVAC automation requirements

The double inlet blower wheel design optimizes air intake

Lochinvar & A.O. Smith 100111990 Gas Valve 320788-703 OEM Compatibility: Guaranteed fit forAs a seasoned technician, you know that a call for a Lochinvar Knight boiler gas valve replacement usually means a high stakes repair where precision is non negotiable. The Lochinvar & A. O. Smith 100111990 Gas Valve is an OEM spec modulating gas valve engineered for precise air to fuel ratios in high efficiency hydronic systems. This component is a critical HVAC replacement part designed for specific series of the Lochinvar Knight and A. O. Smith BTR