the 540-378 is the cross of 540-380

this low oil pressure cutout utilizes a 1/4" male flare connection for secure integration

preventing CO leakage and maintaining optimal furnace venting performance

Featuring a rugged stainless steel body and an explosion-proof enclosure

This Freedom Series starter is rated for 27A continuous current and features a 120V AC coil

Resideo VU52N1019 Valve L99H008 the 540-378 is the crossThe Resideo VU52N1019 is a professional grade two way fan coil valve designed for high performance hydronic control in commercial HVAC systems. Featuring a 1 2" NPT female connection and a 3. 5 Cv flow capacity, this normally open valve is engineered to regulate the flow of hot or chilled water, including glycol concentrations up to 60%. Built for durability on the job site, the forging consists of a brass body, brass stem, and brass seat, ensuring