Fernco Inc PQC-104 Qwik Cap Flexible Test Cap 4 Inches

Product Description

The FERNCO INC PQC-104 is a flexible test cap designed to temporarily seal 4-inch pipe openings during pressure and leak testing. Made for use on drain, waste, and vent (DWV) piping systems, this cap slips over the pipe end and cinches down to form a reliable seal. Plumbers and pipefitters rely on this type of cap when pressure-testing new or existing plumbing rough-ins before final inspection. The flexible construction allows it to seat securely on pipe ends without rigid couplings or threaded fittings.

The PQC-104 is suited for residential and light commercial plumbing applications where temporary pipe closure is required during rough-in testing or system commissioning. It is used on 4-inch pipe ends in DWV systems, including ABS, PVC, and cast iron configurations where a test cap is needed for air or water pressure testing prior to inspection sign-off.

Key Features

• Fits 4-inch pipe openings for temporary sealing during pressure and leak tests
• Flexible design accommodates standard pipe end tolerances
• No threading or rigid couplings required for installation
• Sold in a package quantity of 20 units per case
• Lightweight construction suitable for field use

Compatibility

Designed as an OEM-style replacement and standard test cap for 4-inch DWV piping systems in residential and commercial plumbing applications.

Installation Notes

Installation is typically performed by licensed plumbers during rough-in or pre-inspection testing phases. Shut off all water supply and relieve system pressure before removing or repositioning any test caps. Follow local plumbing code requirements, including IPC guidelines, for test pressure limits and duration. Do not exceed the rated pressure capacity of the cap or use it as a permanent pipe closure.

Technical Specifications

• Pipe Size: 4 inches
• Package Quantity: 20 EA
• Weight: 14 pounds

Standard Information

• Brand: FERNCO INC
• Manufacturer Part Number: PQC-104