For maximum germicidal efficacy

Featuring a rugged brass body construction and a 3/8" NPT connection

ensuring predictable performance during peak loads

The "/U" suffix denotes "Universal" or trade-packaged

Williams 7728 Conversion Kit 320734-701 For maximum germicidal efficacyWhen you are field converting a Williams Forsaire furnace for high altitude or specific fuel requirements, the Williams 7728 Conversion Kit is the specific set required to transition from Natural Gas to Liquid Propane (LP). Designed for 40,000 BTU models, this technical kit provides the exact burner orifice and pilot orifice sizing needed to maintain the correct manifold pressure and stoichiometric balance. As a veteran technician knows, using the