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The SPEARS 54211707470 is a Schedule 80 extra-heavy PVC reducing bushing designed to transition between a 10-inch and 4-inch pipe run. It features a spigot end that inserts into an existing socket fitting on the larger side and a socket end that accepts a 4-inch spigot on the smaller side. At 6 inches in length and weighing just under 12 pounds, this bushing is built for demanding industrial, commercial, and municipal plumbing systems where pressure ratings and chemical resistance matter. It is manufactured domestically by Spears Manufacturing and is gray in color, consistent with SCH 80 PVC convention.
This bushing is suited for pressure piping systems in industrial process lines, chemical handling, water treatment, irrigation infrastructure, and commercial plumbing where a large-diameter reduction is required in a single fitting. The spigot-by-socket end configuration allows it to integrate directly into existing SCH 80 PVC piping layouts without additional adapters. Licensed plumbers and pipefitters handling industrial or heavy commercial installations are the primary installers of this fitting.
Designed as an OEM-style replacement and new-installation fitting for Schedule 80 PVC pressure piping systems requiring a 10-inch spigot to 4-inch socket reducing bushing connection.
Installation should be performed by a licensed plumber or pipefitter in accordance with applicable IPC and local plumbing codes. Depressurize and drain the system fully before cutting into the line or disturbing any existing fittings. Use a listed PVC primer and solvent cement rated for SCH 80 pressure fittings, and allow full cure time before returning the system to service. Do not apply heat to seat or adjust the fitting.
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