Oatey 238128 Dual Test Cap 2x1.5 Inch

Product Description

The OATEY 238128 is a dual test cap used to pressure-test and temporarily seal drain, waste, and vent (DWV) piping systems during rough-in inspections. The cap is designed to fit a 2-inch main opening with a 1.5-inch secondary port, allowing a single fitting to test two different pipe sizes in one setup. Licensed plumbers use this cap during new construction and remodel work to verify that the DWV system holds pressure before walls are closed and the system is placed in service. It eliminates the need for two separate test caps at locations where pipe sizes transition.

This dual test cap is suited for residential and light commercial plumbing rough-in applications. It is installed where a 2-inch line intersects or transitions to a 1.5-inch line and the system requires a pressure hold test for code inspection. The design covers both pipe openings simultaneously, streamlining the testing process and reducing setup time during inspections.

Key Features

• Tests two pipe sizes simultaneously with one cap
• Fits 2-inch main opening with 1.5-inch secondary port
• Designed for DWV system pressure testing during rough-in inspections
• Reduces test setup time at pipe size transition points

Compatibility

Designed as an OEM-style replacement and standard test fitting for residential and light commercial DWV piping systems requiring dual-size test caps at 2-inch by 1.5-inch transition points.

Installation Notes

Installation and use should be performed by a licensed plumber in accordance with local plumbing codes and the International Plumbing Code (IPC). Ensure all water supply is isolated and the system is depressurized before installing or removing test caps. Do not exceed the pressure rating of the piping system under test. Remove test caps and restore all openings to their permanent fittings before system commissioning.

Technical Specifications

• Main Opening Size: 2 inches
• Secondary Opening Size: 1.5 inches
• UPC: 675115238121

Standard Information

• Brand: OATEY
• Manufacturer Part Number: 238128