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The PARKER B20-3BP is a brass pneumatic hose coupler designed for industrial interchange pneumatic systems. It features a 1/4 inch body diameter and accepts a 1/4 inch inside diameter hose via a Push-Lok hose barb thread connection. Rated for a maximum working pressure of 300 psi and a temperature range of -40 degrees F to 250 degrees F, this coupler suits demanding shop air, automation, and general industrial pneumatic applications. The brass construction resists corrosion and provides reliable sealing in compressed air service. Weighing approximately 0.18 pounds, it installs quickly and is packaged individually.
This coupler is suited for residential and commercial shop environments, manufacturing facilities, and industrial maintenance applications where Industrial Interchange (Series 20) fittings are the standard. It mates with standard Industrial Interchange couplers and plugs commonly found in pneumatic tool circuits, compressor drop lines, and air distribution manifolds. The Push-Lok hose barb end connects directly to compatible 1/4 inch ID hose without requiring separate ferrules or clamps in many installations, simplifying assembly in tight spaces or high-volume tool change situations.
Designed as a standard Industrial Interchange Series 20 coupler compatible with Series 20 industrial interchange plugs and pneumatic hose assemblies using 1/4 inch ID Push-Lok style hose barb connections.
Installation should be performed by a qualified technician familiar with pneumatic system service. Depressurize and lock out the compressed air supply completely before disconnecting or replacing any pneumatic fittings. Use an appropriately sized wrench on the 0.75 inch hex flats to seat the fitting without over-torquing the brass body. Inspect hose condition and ensure the Push-Lok hose is fully seated before returning the system to service.
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