Comprises can faucet. Works with 134a cans or Enviro-Protected cans. Has 1/four” flare connections and is used for R12 and R22 programs. This manifold is used with all Enviro-Protected Refrigerants. Will also be used with R134a cans of refrigerant if you happen to Set up can faucet on can. Set up lengthy hose to device to rate. This may simplest paintings on R12 or R22a programs.