Coilhose Pneumatics 588 Pneumatic Hose Coupler 3/8 in

Product Description

The COILHOSE PNEUMATICS 588 is a pneumatic hose coupler designed for industrial compressed-air systems. It features a 3/8-inch body diameter and a hose barb thread type, accepting hose with a 1/2-inch inside diameter. Constructed from steel with a nickel-plated finish, this coupler handles a maximum working pressure of 300 psi and operates across a temperature range of -40 degrees F to 250 degrees F. It follows the Industrial Interchange standard, making it a broadly compatible choice for shop air lines, pneumatic tool connections, and production floor air distribution setups. Installation is handled by HVAC technicians, pipefitters, millwrights, or maintenance mechanics.

This coupler is suited for residential shops, commercial facilities, and light industrial environments where Industrial Interchange pneumatic fittings are the standard. It connects air hose to pneumatic tools, compressors, quick-disconnect manifolds, and air-supply drops. The hose barb end mates with 1/2-inch ID hose, providing a secure push-on or clamped connection. It is a single-unit package, sold individually, and is appropriate wherever a durable steel coupler with a nickel-plated finish is specified for dry or lubricated compressed-air service.

Key Features

• Industrial Interchange coupling type for broad compatibility with standard shop air fittings
• 3/8-inch body diameter with hose barb thread type for 1/2-inch ID hose
• Steel construction with nickel-plated finish for corrosion resistance in shop environments
• Rated to 300 psi maximum working pressure
• Wide service temperature range: -40 degrees F to 250 degrees F

Compatibility

Designed as an OEM-style replacement or direct-install coupler for Industrial Interchange pneumatic systems using 1/2-inch ID air hose and 3/8-inch body quick-connect fittings.

Installation Notes

Installation should be performed by a qualified technician or experienced maintenance mechanic. Depressurize and bleed the air line completely before removing any existing fitting or coupler. Secure hose barb connections with an appropriately sized hose clamp to prevent blowoff under pressure. Verify system pressure does not exceed the 300 psi rating of this coupler before returning the line to service.