Coilhose Pneumatics 158 Pneumatic Coupler 1/4 in Brass

Product Description

The COILHOSE PNEUMATICS 158 is a brass pneumatic hose coupler designed for use in compressed air systems requiring a reliable, threaded connection. The coupler features a 1/4 inch body diameter and a 1/8 inch female NPT (FNPT) threaded inlet, with an Industrial Interchange configuration that matches the most widely used quick-connect standard in North American shop and manufacturing environments. It is rated for a maximum working pressure of 300 psi and handles temperatures from -40 degrees F to 250 degrees F, making it suitable for demanding production and service environments. Licensed HVAC technicians, plumbers, and pneumatic tool service techs install this type of fitting as part of shop air distribution and equipment hookups.

The 158 coupler is used in residential and commercial settings wherever Industrial Interchange pneumatic quick-connect systems are present. Typical applications include connecting air tools, blow guns, and pneumatic control equipment to shop air lines. The FNPT threaded connection allows direct installation into female-threaded ports on air manifolds, hose whips, and inline fittings. Its brass construction suits both dry and lightly lubricated compressed air service.

Key Features

• Industrial Interchange coupling type for broad tool and fitting compatibility
• 1/4 inch body diameter with 1/8 inch FNPT threaded connection
• Brass construction for corrosion resistance in compressed air service
• 300 psi maximum working pressure
• Wide temperature range: -40 degrees F to 250 degrees F
• Threaded connection type for secure, leak-resistant installation

Compatibility

Designed as an OEM-style replacement or service fitting for Industrial Interchange pneumatic quick-connect systems using 1/4 inch body couplers with 1/8 inch FNPT threaded ports.

Installation Notes

Installation is performed by pneumatic system technicians or qualified tradespeople working on compressed air distribution lines. Depressurize and bleed the air line fully before removing or installing any coupler. Apply thread sealant tape or compound to the FNPT threads per manufacturer recommendations and local code requirements before tightening. Do not exceed the 300 psi rated working pressure of this fitting.