Parker A6TCB4 Push-to-connect Tube to Barb Connector 3/8 in

Product Description

The PARKER A6TCB4 is a push-to-connect tube-to-barb connector designed for quick, tool-free tube connections in fluid handling systems. Manufactured from polyoxymethylene (POM), a rigid engineering-grade acetal resin, this fitting handles pressures up to 300 psi. The 3/8-inch OD tube connection mates with a barbed outlet for secure hose attachment on the barb side. EPDM O-rings provide reliable sealing across a range of fluid media. Plumbers, HVAC technicians, and industrial service professionals use this fitting where a permanent or semi-permanent tube-to-hose transition is needed without the use of compression tools or wrenches.

This fitting is suited for residential and light commercial fluid distribution systems, including water supply lines, pneumatic tubing, and low-pressure chemical handling circuits. The push-to-connect inlet accepts 3/8-inch OD tubing with a simple insertion, while the barb end retains flexible hose under pressure. Its gray POM construction resists many common fluids and offers dimensional stability in moderate-temperature environments. Installers working on tight routing or retrofit plumbing often choose push-to-connect fittings like the A6TCB4 to reduce labor time versus traditional compression or threaded fittings.

Key Features

• Push-to-connect inlet accepts 3/8-inch OD tubing without tools
• Rated to 300 psi for use in pressurized fluid or pneumatic lines
• Polyoxymethylene (POM) body offers rigidity and chemical resistance
• EPDM O-ring seals provide reliable leak-free performance across common fluid media
• Barbed outlet secures flexible hose without additional fittings
• Compact, lightweight design at 0.05 pounds for space-constrained installations

Compatibility

Designed as an OEM-style push-to-connect replacement fitting for systems using 3/8-inch OD tubing with a barbed hose transition in plumbing, HVAC, or fluid handling applications.

Installation Notes

Installation is performed by plumbers or HVAC technicians. Before servicing any fluid line, depressurize the system completely and shut off the fluid supply. Ensure tubing end is cut square and free of burrs before inserting into the push-to-connect inlet. On the barb side, push flexible hose fully over the barb and secure with an appropriate hose clamp per system requirements and applicable IPC or IFGC guidelines.