Always measure the active fin area

The adjustable dial allow you to match the original OEM specification exactly

This retainer is essential for technicians performing preventative maintenance or repairing Carrier rooftop units where the original hardware has succumbed to oxidation or warping

This assembly is specifically calibrated for Williams Floor Furnaces models 4505A and 6505A

Williams 7720 Conversion Kit Freon Always measure the active finWhen transitioning a 50,000 BTU Williams Forsaire furnace from natural gas to liquid propane, using the Williams 7720 conversion kit (Part #50086) is the standard for maintaining proper manifold pressure and orifice sizing. This Williams gas conversion kit is engineered for specific compatibility with Williams 50086 series dual wall counterflow furnaces manufactured after 2013. For technicians in the field, this kit provides a complete set of OEM HVAC