Coilhose Pneumatics 128 Pneumatic Hose Coupler 1/2 Inch

Product Description

The COILHOSE PNEUMATICS 128 is a steel pneumatic hose coupler designed for industrial compressed-air systems. It features a hose barb thread type for direct hose connection and a nickel-plated finish that resists corrosion in shop and field environments. The coupler body measures 1/2 inch in diameter and accepts 1/2 inch inside-diameter hose. It is rated for a maximum working pressure of 300 psi and handles temperatures from -40 degrees F to 250 degrees F. HVAC technicians, plumbers, and industrial maintenance professionals use this fitting to connect air tools, blow guns, and pneumatic equipment to shop-air lines.

This coupler follows the Industrial Interchange standard, one of the most widely used pneumatic fitting formats in North American shops. It is suited for residential and light commercial service vehicles, stationary compressor stations, and production floor air drops where a reliable, leak-resistant quick-connect coupler is required. The hose barb connection allows direct attachment to rubber or reinforced thermoplastic air hose without the need for threaded pipe fittings.

Key Features

• Industrial Interchange pattern — compatible with the most common shop-air quick-connect plugs
• 300 psi maximum working pressure for demanding compressed-air applications
• Wide temperature range: -40 degrees F to 250 degrees F
• Hose barb connection accepts 1/2 inch inside-diameter air hose
• Nickel-plated steel body resists corrosion and wear
• 1/2 inch body diameter — standard size for 1/2 inch air supply lines

Compatibility

Designed as an OEM-style replacement or addition coupler for Industrial Interchange pneumatic systems using 1/2 inch inside-diameter air hose at working pressures up to 300 psi.

Installation Notes

Installation is performed by qualified pneumatic or mechanical technicians. Depressurize and bleed down the air line completely before disconnecting or installing any coupler. Push the hose barb fully into the hose and secure with an appropriately sized clamp to prevent blow-off under pressure. Do not exceed the rated 300 psi working pressure or the stated temperature limits for the application.