Haltec OR-224-TG Standard 1/4″ Diameter O-Ring for 24″ Grader Tubeless - Tire Supply Network
Everbilt 3/4 in. Brass FPT Full Port Ball Valve 107-404EB - The Home Depot
Supercritical CO2 chamber O-ring blowout - YouTube
Blowout Preventer
RV Winterizing Kit & Sprinkler Blowout Adapter, 15" Air Compressor Quick-Connect Plug with Valve, Water Blow Out Fitting Adapter for Winterize Sprinkler System Winterizing RV, Motorhome Camper Boat - Walmart.com