Donuts · Donut Pipe Gasket

Fernco 22U-205 Pipe Donut – 2" SV Hub x PVC (SCH 40/STD) Compression Seal Gasket

Part # 22U-205

Precise, application-specific fit. Engineered to match specific pipe ODs and cast iron hub dimensions for a secure, interference fit that ensures...
Fast, tool-friendly installation. Installs quickly with standard tools, reducing labor time while delivering a consistent, professional connection.
Durable elastomeric construction. Manufactured from high-quality elastomeric material that resists wear and maintains sealing performance over time.
Trusted and preferred. Proudly manufactured in the united states.

Donuts Size: 2" x 2"

Connects Service Weight Cast Iron to SCH 40

Drawing (PDF) All documents

Dimensions

Download drawing (PDF)

End 1 pipe OD range	1.84" to 2.53"
End 1 inside diameter	2.38"
Length	3.13 in
Width	11.25 in
Height	2.38 in
Weight	0.25 lb

Product details

The 22U-205 pipe donut is designed for 2" service weight (sv) hub connections to PVC pipe, delivering a reliable compression seal in DWV systems. Its elastomeric construction provides a tight, interference fit that prevents leaks while accommodating slight dimensional variations. Ideal for fast, clean installations, it eliminates the need for traditional sealing methods.

Compression seal technology. Creates a tight, leak-resistant seal by compressing between the pipe and hub—eliminating the need for messy grouts or sealants.

Compatible with multiple materials. Designed for use with cast iron hubs and PVC (sch 40/std) pipe, making it a versatile solution for DWV system connections.

Specs and codes. Complies with ASTM d5926, ASTM c1173 and uniform plumbing code (UPC)