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The MISSION RUBBER 803528 is a C Series shielded specialty coupling designed to join dissimilar or same-material pipe ends in drain, waste, and vent piping systems. It accepts a 3-inch nominal pipe on one end and a 2-inch nominal pipe on the other, accommodating cast iron, plastic, or steel pipe materials on the receiving end. The shielded design provides full circumferential coverage for added joint integrity. Licensed plumbing contractors and pipefitters typically install this coupling in residential and commercial DWV applications where a transition between pipe sizes or materials is required.
This coupling is suited for Schedule 40 and standard-wall pipe installations. It is commonly used in new construction and retrofit plumbing work where a 3-inch to 2-inch reduction is needed and pipe material varies between sections. The cast iron inlet end makes it a natural fit for legacy cast iron drain systems transitioning to PVC, ABS, or steel runs. Its domestic manufacture supports project specifications requiring domestic-sourced plumbing components.
Designed for use with 3-inch nominal cast iron inlet pipe transitioning to 2-inch nominal cast iron, plastic, or steel pipe meeting SCH 40 or standard-wall dimensions.
Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and IPC requirements. Shut off water flow and relieve system pressure before beginning work. Pipe ends should be clean, free of burrs, and properly aligned before the coupling is tightened. Do not overtighten the band clamps, as this can distort the gasket and compromise the seal.
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