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The PLUMB SHOP DIV BRASSCRAFT 172-794 is a rubber replacement disposal gasket designed to seal the drain connection on compatible garbage disposal units. This gasket prevents water leakage at the sink flange or discharge point, keeping the disposal installation watertight. It measures approximately 2.87 inches wide and 0.87 inches in height, with a packaged weight of 0.37 pounds. Licensed plumbers and experienced DIYers install this part during routine disposal service or when an existing gasket has cracked, compressed, or begun to leak. The rubber construction provides a flexible, durable seal suited for the wet, high-vibration environment of a residential garbage disposal.
This gasket is intended for residential kitchen sink disposal installations where an OEM-style rubber seal is needed to restore a leak-free connection. It is specifically noted to fit the In-Sink-Erator Busboy 38 and Whirl-A-Way disposal models. The part is sold individually and arrives carded for retail or trade counter use, making it a practical stocking item for service calls where a quick seal replacement is required without a full unit swap.
Confirmed compatible with In-Sink-Erator Busboy 38 and Whirl-A-Way garbage disposal units. Verify the gasket seat diameter on the specific disposal before installation to confirm fitment.
A licensed plumber or qualified technician should perform disposal gasket replacement. Before beginning work, shut off power to the disposal at the breaker and disconnect the unit from the drain assembly per standard plumbing practice. Clean the gasket seat thoroughly to remove debris or old gasket material before seating the new gasket. Refer to local plumbing codes and the disposal manufacturer documentation for any additional installation requirements.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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