Sioux Chief 696-11P OxBox 1-1/2 PVC Air Admittance Valve Adapter

Sioux Chief 696-11P OxBox 1-1/2 PVC Air Admittance Valve Adapter

The Sioux Chief 696-11P OxBox Turbovent Air Admittance Valve (AAV) Adapter is a 1-1/2 PVC fitting that lets a plumber terminate a vent line without running a full vent stack to the roof. Housed in the OxBox format for a clean behind-the-wall or under-floor rough-in, the Turbovent AAV opens at .01 inch of negative pressure to admit air into the drain-waste-vent system and holds a positive seal against back pressure up to 13 psig. It is built for fixtures such as island sinks, remote lavatories, and other traps where extending a vent stack to the roof is impractical, and it ties directly into 1-1/2 PVC DWV piping using a solvent-weld PVC adapter body.

Key Features

• Trade Size: 1-1/2 PVC adapter connection for direct tie-in to 1-1/2 PVC vent piping in the DWV system.
• PVC Construction: Solvent-weld PVC adapter body built for behind-the-wall or under-floor vent line rough-in.
• Quick-Opening AAV: The Turbovent air admittance valve opens at just .01 inch of negative pressure to relieve vacuum in the vent system as fixtures drain.
• Positive Seal: Holds a positive seal against up to 13 psig of back pressure so sewer gas stays out of the occupied space.
• Self-Cleaning Actuator: The internal actuating device spins each time the valve activates, keeping the sealing surface free of dust and debris for consistent long-term operation.
• Thread Sealing: Seal threads with PTFE tape only - do not use pipe dope - per the manufacturer's installation instructions.
• Installation Orientation: Install upright and vertically, and in an accessible location only, per manufacturer requirements.

Technical Specifications

• Country of Origin: United States
• Packaging: 6 EA per case
• Connection: Threaded, sealed with PTFE tape (no pipe dope)
• Adapter Size: 1-1/2 PVC

Typical Applications

• Island Sink and Remote Fixture Venting Without Roof Access
• Renovation Projects Where Extending a Vent Stack to the Roof Is Impractical
• Residential and Commercial Rough-In DWV Plumbing
• Remote Lavatories and Traps Requiring a Local Vent Termination Point
• Accessible Chase, Cabinet, or Wall Cavity Installations Per Manufacturer Requirements

Why Sioux Chief?

Sioux Chief backs the OxBox Turbovent adapter with a PVC body manufactured in the United States and a self-cleaning actuator design that keeps the AAV seal free of debris between cycles. The .01 inch quick-opening response and the 13 psig positive seal give installers a documented performance baseline for accessible-location vent termination, and the PTFE-tape-only sealing requirement keeps the threaded connection installed exactly the way the manufacturer specifies. For plumbers who need a code-recognized alternative to a full roof vent, this OxBox adapter gives a compact, repeatable rough-in option sized for 1-1/2 PVC DWV lines.