1-way exhaust air pneumatic flow control valve with slotted head screw + non-return function - Festo (GRLA series) - Part number #193144 - Q.S. 6 (6mm push-in) connector pneumatic connection (port 1) + G1/8" threaded (male) pneumatic connection (port 2) - Rated for 185L/min (LPM) (at 6 bar; in direction of flow control) - Screw-in mounting - Brass adjusting screw / NBR seals - equivalent to part #GRLA18QS6D