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The B1796632 is a genuine OEM 3/8 in seal-and-nut assembly for Goodman ARPF364216AB air handlers. This small but essential fitting creates a leak-tight connection at the coil/metering junction, keeping refrigerant or condensate contained at the joint. Worn, dried, or over-torqued seals are a common source of slow leaks, and replacing the matched seal and nut together restores a proper, dependable seal.
Generic hardware-store seals may be close in size but rarely match the exact durometer and seat profile of the factory part, leading to repeat leaks. The genuine Goodman B1796632 is machined to the original spec for a confident, one-time fix. Always replace the seal whenever the joint is opened.
Easy to moderate. If the connection is already accessible, swapping the seal and nut takes only minutes with basic wrenches. If the fitting is on a sealed refrigerant joint, an HVAC technician should perform the work to avoid releasing refrigerant.