Mission Rubber 1803014 No-hub Coupling 3 Inch Cast Iron

Product Description

The MISSION RUBBER 1803014 is a standard lightweight no-hub coupling designed to join cast iron no-hub soil pipe and fittings in drain, waste, and vent (DWV) systems. The coupling uses a neoprene sleeve and stainless steel clamp band to create a leak-resistant, vibration-absorbing connection without the need for hubbed joints or solder. At 3 inches nominal size with a cast iron end style, it is well suited for new construction and repair work on residential and light commercial plumbing systems. Licensed plumbers and pipefitters are the primary installers of this fitting.

This coupling is used in underground, aboveground, and in-wall DWV installations where no-hub cast iron pipe is the specified system material. It accommodates standard 3-inch no-hub pipe and fittings, making it a common choice for stack lines, branch drains, and building drain applications. The domestic designation indicates this coupling is manufactured in the United States, which is relevant for projects subject to Buy American or domestic-content procurement requirements.

Key Features

• Standard lightweight design reduces handling fatigue during installation in overhead or confined-space runs
• No-hub configuration eliminates hubbed joints, speeding up assembly on DWV systems
• 3-inch nominal size fits standard no-hub cast iron pipe and fittings
• Cast iron end style provides compatibility with no-hub cast iron soil pipe
• Neoprene sleeve absorbs vibration and resists common drain system chemicals
• Domestically manufactured for projects with domestic-content requirements

Compatibility

Designed as an OEM-style replacement and new-installation coupling for 3-inch nominal no-hub cast iron soil pipe and fittings in residential and light commercial DWV systems.

Installation Notes

Installation of no-hub couplings should be performed by a licensed plumber in accordance with the International Plumbing Code (IPC) and applicable local codes. Torque the stainless steel clamp bands using a torque-limiting screwdriver or no-hub torque wrench to the value specified by the applicable code or coupling standard, typically referenced in CISPI 310 or ASTM C1277. Ensure pipe ends are clean, cut square, and free of burrs before seating the neoprene sleeve. Do not overtighten, as this can deform the sleeve and compromise the seal.

Technical Specifications

• Nominal Size: 3 inches
• End Style: Cast Iron No-Hub
• Coupling Type: Standard Lightweight No-Hub
• Country of Origin: Domestic (USA)

Standard Information

• Brand: MISSION RUBBER
• Manufacturer Part Number: 1803014