Valve Caps Viking Plastics offers refrigerant bottlers and reclaimers a protective cap for use with the CGA 660 valve fittings, molded out of 33% glass filled nylon and commonly found on 125 lbs. bottles, refrigeration bottles, and ½ ton reclamation systems. These caps can also be provided with a Neoprene disc seal and/or a left-handed thread. Download Brochure Request A Quote Contact Us Flare Fitting Caps PART NUMBER DESCRIPTION CONNECTION SIZE BOX QTY 820-0129 Flare Cap (Knurl) 1/4″ SAE 8,000 820-0149 Flare Cap (Knurl) 1/4″ SAE 8,000 820-0279 Flare Cap (Hex) 1/4″ SAE 7,000 Valve Caps PART NUMBER DESCRIPTION CONNECTION SIZE BOX QTY 829-0660 CGA660 Valve Cap 1.03″ – 14 1,000 829-0669 CGA660 Valve Cap w/ Seal 1.03″ – 14 1,000