From the product description, check product page for current description, price and availability:

• 1.Include: Ball Lock Gas Disconnect with Check Valve MFL 1/4(2 PCS), Ball Lock Liquid Disconnect MFL 1/4(2 PCS), Swivel Nuts 5/16”(2 PCS), Swivel Nuts 3/16” (2 PCS)
• 2.Material: Plastic for Ball Lock Disconnects and Stainless Steel Material for Swivel Nuts
• 3.Update function: The Check Valve Ball Lock Disconnect stops any liquid running back up the gas post and into the regulator which will ruin the internal mechanisms;
• 4.Widely Use: This Ball Lock Disconnect with Check Valve and 5/16” Swivel Nut Barb fits most Cornelius Keg, Pepsi Keg, and 7-UP tanks, dispense craft cocktails, soda, and other beverages from your existing keg;
• 5.Guarantee: Quality Guarantee, any problem for Ball Lock Disconnect Sets, Money Back or Replacement free.

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