Parker 15-787 Pneumatic Hose Coupler 3/8 Inch Tru-flate

Product Description

The PARKER 15-787 is a steel pneumatic hose coupler designed for compressed air tool and hose connections in shop, garage, and industrial environments. It features a 3/8-18 female NPTF threaded connection and a 3/8 inch body diameter, making it a direct-fit Tru-Flate Automotive interchange coupler. Rated to 300 psi maximum working pressure, it handles the demands of impact wrenches, air ratchets, blow guns, and other pneumatic tooling. The operating temperature range spans from -40 degrees F to 250 degrees F, supporting year-round use in both heated and unheated spaces. Licensed HVAC technicians, mechanics, and industrial maintenance personnel routinely spec this coupler for pneumatic distribution systems.

This coupler is suited for residential and commercial garage environments, automotive service bays, and general-purpose compressed air lines. The Tru-Flate Automotive interchange profile allows it to mate with Tru-Flate-style plugs and couplers already in service at a given shop, reducing the need to re-outfit an entire pneumatic circuit. Its female NPTF thread seals on the threads themselves, minimizing the risk of air leaks without relying solely on a sealant tape. Installation requires only a standard wrench and is typically completed in minutes as part of a hose assembly or distribution manifold setup.

Key Features

• Tru-Flate Automotive interchange profile for broad shop compatibility
• 3/8-18 female NPTF threaded connection for reliable thread-seal performance
• 300 psi maximum working pressure rating
• Operating range of -40 degrees F to 250 degrees F
• Steel construction for durability in high-cycle pneumatic service
• 3/8 inch body diameter with 0.88 inch hex for standard wrench installation

Compatibility

Designed as a Tru-Flate Automotive interchange coupler compatible with Tru-Flate-style plugs and pneumatic hose assemblies using 3/8-18 female NPTF threaded fittings.

Installation Notes

Depressurize and bleed the air line completely before removing or installing any pneumatic coupler. Apply thread sealant or PTFE tape to the male fitting threads as appropriate for NPTF connections, following shop practice and any applicable facility compressed air codes. Use a properly sized open-end or adjustable wrench on the 0.88 inch hex to tighten to a snug, leak-free fit without over-torquing the steel body. Inspect the coupler and mating plug for wear or debris before placing the assembly back into service.