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

• Ball lock disconnects with beer keg;
• Food Grade Material for the Ball Lock Disconnect;
• Threaded MFL connection allows for easy disassembly of lines for cleaning
• The black one connects to the liquid-out post on any Ball Lock home brew keg;The gray one connects to the CO2 gas-in post on any Ball Lock home brew keg
• Quality Guarantee, Any Problem for the Keg Disconnects,Money Back or Replacement Guarantee.

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