Mission Rubber Company 6223m8g 8 Inch No-hub Coupling

Product Description

The MISSION RUBBER COMPANY 6223m8g is a standard no-hub coupling designed to join cast iron no-hub pipe in drain, waste, and vent (DWV) systems. This 8-inch coupling uses a neoprene rubber sleeve and stainless steel shield with tightening clamps to create a leak-resistant, vibration-dampening connection without the need for soldering, threading, or hub-and-spigot joints. It is a domestic-grade fitting suited for residential and light commercial plumbing installations. Licensed plumbers and pipefitters are the typical installers for this type of fitting.

This coupling is intended for use with 8-inch nominal no-hub cast iron soil pipe in underground or above-grade DWV applications. Standard no-hub couplings of this size are commonly installed in main drain lines, building sewers, and large-diameter waste stacks in both new construction and repair work. This fitting also cross-references to Ideal part number 6223M8G and Mission part number 1808013, making it a recognized interchangeable option across multiple supplier catalogs.

Key Features

• 8-inch nominal size fits standard no-hub cast iron soil pipe
• Domestic-grade construction per standard no-hub coupling specifications
• Neoprene sleeve provides flexibility and vibration dampening at the joint
• Stainless steel shield and clamps resist corrosion in wet environments
• No-hub design eliminates the need for hub-and-spigot or threaded joints
• Cross-references to Ideal 6223M8G and Mission 1808013

Compatibility

Compatible with 8-inch no-hub cast iron soil pipe. Cross-references to Ideal part number 6223M8G and Mission part number 1808013. Designed as an OEM-style replacement or interchangeable fitting for standard 8-inch no-hub DWV piping systems.

Installation Notes

Installation is performed by a licensed plumber in accordance with local plumbing codes and the International Plumbing Code (IPC). Before installation, ensure the pipe ends are clean, free of burrs, and properly aligned. Torque the stainless steel clamps with a flat-head or nut-driver to the coupling manufacturer's specified procedure. Never over-tighten clamps on the neoprene sleeve, as this can damage the sealing surface and compromise joint integrity.

Technical Specifications

• Nominal Pipe Size: 8 inches
• Coupling Type: Standard No-Hub
• Category: Flexible Fittings
• UPC: 016846970131

Standard Information

• Brand: MISSION RUBBER COMPANY
• Manufacturer Part Number: 6223m8g