Fernco Inc. 3000-22 Shielded Coupling 2 In. trap

2-Inch Shielded Coupling for DWV Systems

This Fernco 3000-22 coupling connects 2-inch cast-iron pipe to plastic, steel or extra-heavy cast iron without bushings. An internal pipe stop ensures correct insertion depth while reducing noise and vibration in drainage installations. The elastomeric PVC body with outer shear ring and clamp assemblies conforms to ASTM A167-91 specifications for reliable joint integrity.

Capacity and Pressure Rating

Rated for 4.3 psi test pressure and operating temperatures up to 180 F, this coupling handles standard drain, waste and vent pressure loads in residential and light commercial plumbing. The 2-inch by 2-inch sizing provides direct compatibility with nominal pipe dimensions, while the 60 in-lb installation torque requirement ensures consistent clamp tightening without over-compression. Performance headroom covers typical gravity-flow DWV demands but is not intended for pressurised supply lines.

Replaces Traditional Bushing Assemblies

This coupling eliminates the need for separate bushings when transitioning between dissimilar pipe materials, reducing parts count and potential leak paths. The upgrade is worthwhile when joining cast iron to plastic or steel in retrofit or new DWV work where code-compliant, vibration-damped connections are required. Installers seeking a single-component solution for 2-inch transitions will find the integrated shear ring and stop features simplify inspection and long-term maintenance.