Parker 72338478 Push-to-connect End Stop 3/8 Inch Od

Product Description

The PARKER 72338478 is a push-to-connect end stop tube fitting designed to terminate or cap off a 3/8-inch OD tube line without the need for tools or compression hardware. Constructed from bio-sourced Nylon 11, this fitting offers a lightweight, chemically resistant body rated to 190 psi. The EPDM O-ring provides a reliable seal against moisture and mild chemical exposure. It is well suited for pneumatic and fluid distribution lines where a tube run must be cleanly terminated at a panel, manifold, or distribution block. HVAC technicians, plumbers, and industrial pipe fitters install end stops like this during system commissioning or when capping unused ports.

This fitting is appropriate for use in residential and light commercial pneumatic control lines, fluid transfer systems, and instrument air tubing. The push-to-connect design accepts 3/8-inch OD tubing and locks the tube in place on insertion, making it a practical choice for tight spaces or high-cycle service environments where threaded fittings are not practical. The white Nylon 11 body suits both indoor panel work and moderate-environment field installations.

Key Features

• Push-to-connect design — no tools required for tube insertion
• Bio-sourced Nylon 11 body for lightweight, chemically resistant construction
• EPDM O-ring seal for reliable performance in moisture-present and mild-chemical environments
• Rated to 190 psi working pressure
• Accepts 3/8-inch OD tubing
• Sold in a package quantity of 10 fittings

Compatibility

Designed as an OEM-style push-to-connect end stop for pneumatic and fluid distribution tubing with a 3/8-inch outside diameter.

Installation Notes

Installation is performed by licensed HVAC technicians, plumbers, or instrumentation mechanics working on low-pressure pneumatic or fluid lines. Before installing or removing a push-to-connect fitting, depressurize and bleed the line completely. Ensure the tube end is cut square and deburred before insertion to guarantee a proper seal. Refer to applicable codes such as the IPC or IFGC for tubing system requirements in your jurisdiction.