Ball Lock Quick Disconnect with check valve Ball Lock Black Disconnect 5/16" Swivel Nut 3/16" Swivel Nut for homebrew Corny Keg by PERA

Ball Lock Check Valve Disconnect Ball Lock Black Disconnect SET Package: Check Valve Ball Lock Gas Disconnect MFL 1/4, Ball Lock Beer Disconnect MFL 1/4, Swivel Nuts 5/16”and 3/16”; Material: PC Material for Check Valve Ball Lock Gas Disconnect, PBT Material for Ball Lock Quick liquid Disconnect, Stainless Steel Material for Swivel Nuts; Widely Use: The Ball Lock Quick liquid Disconnect and The Check Valve Gas Disconnect is for most Cornelius Keg, Pepsi Keg, and 7-UP tanks, dispense craft cocktails, soda, and other beverages from your existing keg; Advantages: This ball disconnect has an internal check valve that will allow the gas to flow out, but won't allow back-flow of liquid back into your system, and this home brewing Kegging Disconnects can Protect your CO2 regulator from back-flow of beer or soda; Guarantee: Quality Guarantee, any problem for this Ball lock fitting, Money Back or Replacement free.