Williams 9307 Kit 319825-402 This model features a 7/8"

This model features a 7/8" Solder ODF hot gas inlet and 1 3/8" Solder connections for both the liquid inlet and the mixed outlet

Direct Replacement: OEM-quality Antunes 8021203090 ensures compatibility with existing mounting footprints in SMD-series installations

this is a direct technical replacement for the Johnson Controls H940 series

ensuring the gauge glass remains perfectly aligned with the unit for reliable visual inspection

airtight seal in the combustion and heat exchange chambers

Williams 9307 Kit 319825-402 This model features a 7/8"The Williams 9307 Thin Wall Collar Kit is an essential component for technicians installing Williams Direct Vent Wall Furnaces in structures with external wall thicknesses between 1 and 5 inches. This technical assembly adds 4 inches to the effective wall profile, ensuring the external vent cap achieves the required 1 1 4 inch engagement with the air inlet and flue tubes to maintain a sealed combustion system. Constructed from heavy duty galvanized