Mission Rubber Company 62r208g 4x3 No-hub Coupling

Product Description

The MISSION RUBBER COMPANY 62r208g is a standard no-hub reducing coupling designed to connect 4-inch cast iron or no-hub drain pipe to a 3-inch pipe in a single transition. The coupling uses a flexible elastomeric sleeve and stainless steel shear-ring band clamps to create a leak-resistant, mechanically secure joint without the need for soldering, threading, or hubbed fittings. It is a domestic-manufactured fitting intended for use in drain, waste, and vent (DWV) systems. Licensed plumbers and pipefitters install this type of coupling as part of new construction rough-in work or as a repair and retrofit solution on existing no-hub DWV systems.

This fitting is suited for residential and light commercial plumbing applications where a size transition is required in a no-hub cast iron or compatible drain line. The 4-inch-to-3-inch reduction is a common configuration found at stack-to-branch connections and at transitions from main building drains to branch lines. This part cross-references to Ideal part number 62R208G and Mission internal part number 1804038, making it a direct interchange for those specified fittings.

Key Features

• Reduces from 4 inches to 3 inches in a single no-hub coupling — no additional adapters required
• Domestic manufacture supports project specifications requiring USA-made DWV fittings
• No-hub design eliminates the need for lead and oakum or threaded connections
• Flexible sleeve construction accommodates minor misalignment between pipe ends
• Cross-references to Ideal 62R208G and Mission 1804038 for drop-in replacement

Compatibility

This coupling cross-references to Ideal part number 62R208G and Mission Rubber Company part number 1804038. It is designed as a standard no-hub reducing coupling for 4-inch-to-3-inch DWV pipe connections in residential and commercial drain, waste, and vent systems.

Installation Notes

Installation is performed by a licensed plumber in accordance with applicable local plumbing codes and the International Plumbing Code (IPC). Before installing, ensure the system is depressurized and flow is stopped or diverted. Pipe ends should be cut square, deburred, and cleaned before seating into the coupling sleeve. Tighten band clamps to the torque value specified by the coupling manufacturer on the product packaging — do not over-tighten, as this can damage the elastomeric sleeve.

Technical Specifications

• Inlet Size: 4 inches
• Outlet Size: 3 inches
• Coupling Type: Standard No-Hub Reducing
• Product Category: Flexible Fittings
• UPC: 016846180387

Standard Information

• Brand: MISSION RUBBER COMPANY
• Manufacturer Part Number: 62r208g