I've tried #112 on my pinlocks because the 111 had to stretch a little which reduced the overall OD. Most of them sealed but I didn't like that tweaking the connector a bit would sometimes cause a hiss of CO2. The 112 fits a tiny bit loose on the post but seals well when the disconnect goes on. My other alternative that I like better is #111 silicone rings. They stay softer when it gets cold and I've had no problems at all.
Sightglass, Refractometer, Ball Valve, Weldless bulkhead, Thermometer, Decals, Stainless Steel Fittings, Compression Fittings, Camlock Quick Disconnects, Scale, RIMS tube, Plate Chiller, Chugger Pump, Super Clear Silicone Tubing, and more!