1/4 flare cap, round brass w/ neoprene o-ring seal
1/4 flare cap, brass hex w/ neoprene o-ring seal
1/4 flare cap, brass hex w/ metal-to-metal seal, also used for M-series fittings
1/2-16 Acme cap, black glass-filled nylon w/ neoprene o-ring seal and retainer strap
1/2-16 Acme cap, black glass-filled nylon w/ neoprene o-ring seal
1/4 flare cap, black glass-filled nylon w/ neoprene o-ring seal and black retainer strap
1/4 flare cap, round black glass-filled nylon w/ neoprene o-ring seal and retainer strap
M10 x 1.25 cap, round black glass-filled nylon w/ neoprene o-ring seal
M8 x 1.0 high side red glass-filled nylon cap w/ neoprene o-ring seal
M8 x 1.0 low side blue glass-filled nylon cap w/ neoprene o-ring seal
