InterVac P-36 Flanged Straight Coupling – PVC Pipe to Flange Adapter (Old Part # X625)

The InterVac P-36 Flanged Straight Coupling is a straight PVC adapter that connects your central vacuum pipe directly to a flanged exhaust opening or exterior wall. It is the straight version of the P-25 flanged elbow. You can use it for overboard exhaust setups, mounting to an exterior wall, or connecting pipe to the RMD unit. Because it works with all central vacuum systems, it is a very versatile fitting for both InterVac and non-InterVac installations.

What is a Flanged Straight Coupling and Why Do You Need One?

Central vacuum systems push out hot air and fine dust as exhaust. Therefore, you need a reliable way to vent that air outside. The P-36 gives you a straight, direct connection from your PVC pipe to a mounting flange. So you can safely direct exhaust air outdoors without making a 90-degree turn. This means you reduce indoor heat buildup and keep allergens out of your living space.

How the P-36 Flanged Coupling Works

You glue standard 2″ PVC pipe into the female socket on one side. After that, you bolt or screw the square flange on the other side to an exterior wall or your overboard exhaust setup. Because the design is completely straight, air flows with minimal resistance. So your system maintains strong performance while venting everything cleanly outside.

Key Features of the InterVac P-36 Flanged Coupling

This fitting offers a straight-through design for maximum airflow. It features a sturdy square flange with pre-drilled holes for easy and secure wall mounting. Plus, the durable gray PVC material resists heat and corrosion, making it ideal for long-term exhaust use.

Who Uses the P-36 Flanged Straight Coupling?

Homeowners and RV owners use it when installing or upgrading overboard exhaust systems. Installers also choose it for custom straight exhaust routing in garages, workshops, and utility rooms. Because it works with any central vacuum system, you can use the P-36 confidently whether you are doing a replacement or a new build.

Easy Installation and Compatibility

You can install the P-36 quickly using standard PVC cement on the pipe side and screws or bolts on the flange side. It connects easily to 2″ PVC pipe and works with all central vacuum systems. After installation, you get a clean, leak-free connection that improves overall air quality and system efficiency.

Built for Everyday Reliability

InterVac makes this flanged coupling from high-grade PVC, so it withstands heat, vibration, and years of continuous use. Whether you vent your central vacuum straight outside your home, RV, or coach, the P-36 delivers a strong, reliable connection that keeps your system performing at its best.

Technical Specifications Part Number: P-36 (Old Part # X625)

Type: Flanged Straight Coupling

Connection: Female PVC Socket x Square Flange

Material: Durable gray PVC

Design: Straight (no angle)

Application: Overboard exhaust, RMD unit, and straight pipe-to-flange connection

Compatibility: Works with all central vacuum systems