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The Goodman B1796632 Seal and Nut (3/8 inch) is a genuine OEM sealing fitting for ARPF182416AA air handler coils. This seal-and-nut set provides a leak-tight connection at the 3/8" line, maintaining refrigerant or condensate integrity at the joint. Worn or missing seals are a common source of slow leaks and efficiency loss.
Sealing surfaces and thread pitch must match exactly to achieve a reliable joint. This factory-original Goodman seal and nut is dimensioned for the ARPF182416AA fitting, ensuring a positive seal on the first torque. Generic hardware may be the wrong durometer or thread, causing weeps and repeat service calls. OEM is inexpensive insurance against leaks.
Easy — Thread the nut with the seal seated and torque to spec. If the fitting is part of a sealed refrigerant line, recovery and recharge by a certified technician is required; for condensate or low-side service connections, this is a quick straightforward swap.