Parker 72338502 Push-to-connect Plug-in Reducer 3/8 X 1/2 in

Product Description

The PARKER 72338502 is a push-to-connect plug-in reducer tube fitting designed to transition between two different tube outside diameters in a single inline connection. It accepts a 3/8 inch OD tube on one end and a 1/2 inch OD tube on the other, allowing straightforward size reduction without additional adapters or tools for tube insertion. The body is molded from bio-sourced Nylon 11, a material chosen for its flexibility, chemical resistance, and durability in fluid-handling applications. The integrated EPDM O-ring provides a reliable seal rated to 190 psi. This fitting is installed by plumbers, HVAC technicians, and fluid system technicians working on pneumatic or liquid distribution lines.

This reducer fitting is suited for residential and light commercial fluid or pneumatic tubing systems where a step-down connection between 3/8 inch and 1/2 inch OD tubing is required. Typical applications include compressed air distribution, water treatment lines, HVAC condensate or fluid circuits, and other systems where push-to-connect fittings are specified for speed and serviceability. The white Nylon 11 body resists corrosion and is compatible with a range of common system fluids where EPDM O-ring compatibility has been verified.

Key Features

• Push-to-connect design allows tool-free tube insertion for fast installation and reconnection
• Plug-in reducer transitions from 1/2 inch OD to 3/8 inch OD tubing in a single fitting
• Bio-sourced Nylon 11 body offers chemical resistance and flexibility in demanding environments
• EPDM O-ring provides a rated seal to 190 psi working pressure
• Compact white body suited for tight routing and visible system layouts
• Sold in packages of 5 units with a minimum order quantity of 1

Compatibility

Designed for use with 3/8 inch and 1/2 inch OD push-to-connect compatible tubing in pneumatic and fluid-handling systems where Nylon 11 fittings and EPDM seals are appropriate for the media and pressure conditions.

Installation Notes

Depressurize and isolate the tubing circuit completely before removing or installing any push-to-connect fitting. Ensure tubing ends are cut cleanly and squarely with a proper tube cutter to achieve a full seal against the O-ring. Verify that the tubing OD matches the fitting port size before insertion, and confirm that the media in the system is compatible with Nylon 11 and EPDM before pressurizing. This fitting is typically installed by licensed plumbers or HVAC technicians in accordance with applicable mechanical and plumbing codes.