Inner thread
Quick couplings with female thread used mostly on risers, pressure reducing valves and ball valves for easy hose connection.
Bestsellers

DMfit quick connector with a 1/4" internal thread and an outlet for a 8mm hose.

DMfit quick connector with a 1/4" internal NPTF thread and an outlet for a 9,5mm hose.

DMfit quick connector with a 1/4" internal NPTF thread and an outlet for a 8mm hose.

DMfit quick connector with a 1/4" internal thread and an outlet for a 8mm hose.

Quick connector with a 1/4 internal thread and an outlet for a 4mm hose.

DMfit quick connector with a 1/4" internal thread and an outlet for a 6mm hose.

JG quick connector with a 1/4" internal thread and an outlet for a 6mm hose.