Parker B34-5B Hose Barb Pneumatic Coupler 3/8 Inch

Product Description

The PARKER B34-5B is a hose barb industrial pneumatic coupler designed to connect flexible hose to pneumatic lines in compressed air systems. Constructed from brass, this coupler features a 3/8 inch body diameter and accepts hose with a 3/8 inch inner diameter. The hose barb design creates a secure, leak-resistant connection without the need for additional fittings or threaded ends. At 0.39 pounds and measuring 2.65 inches in length, it is compact and lightweight for use in tight installations. HVAC technicians, plumbers, and pneumatic system mechanics install this type of coupler in both shop and field applications.

This coupler is suited for residential and light commercial compressed air and pneumatic systems. It is typically installed at the point where flexible hose meets a tool, valve, or manifold connection. The brass construction makes it appropriate for environments where corrosion resistance and durability are required. It is sold individually and is a direct replacement or spare for standard hose barb coupler positions in pneumatic lines, air tools, and general industrial pneumatic assemblies.

Key Features

• Brass construction provides corrosion resistance and long service life
• 3/8 inch body diameter and 3/8 inch hose ID for direct hose barb connection
• Compact profile at 2.65 inches length and 0.39 pounds
• Hose barb design secures flexible hose without additional adapters
• Sold as a single unit for precise replacement or repair quantities

Compatibility

Designed as an OEM-style replacement or service coupler for 3/8 inch hose ID pneumatic lines in industrial and light commercial compressed air systems.

Installation Notes

Installation is typically performed by a licensed plumber, HVAC technician, or qualified pneumatic systems mechanic. Depressurize and bleed the air line fully before removing or installing any coupler. Ensure the hose inner diameter matches the barb size before assembly and use an appropriate hose clamp to secure the connection per system pressure requirements. Follow applicable local codes and manufacturer guidelines for pneumatic system assembly.