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

• 【Well Made & Wide Application】: 304 stainless steel & food grade silicone, solid and rustproof keg coupler adapter kit. This Ball lock keg conversion kit fits all the 5/8″ Thread A/ G/ S/ D type keg coupler!
• 【Absolutely No Leak!】: All the posts are now upgraded with more thicker washers! Standard FPT 5/8″ Thread fits snugly on your keg coupler with high quality thick washers. No need to worry about leakage any more! Perfect Lock & No leak!
• 【Tips on Convert & Clean】: 1. Convert: Allows you to convert the Sankey keg into a Cornelius keg in seconds! Very easy to toggle. 2. Clean: Just INFUSE some clear water into your keg and exporting it to clean the posts. No need to take apart!
• 【Identify & Assembly】: A subtle etched LINE around the top of the gas post to help you identify them. Use hand or pliers to tighten the posts. Please DO NOT over-tighten, as it may deform the washers, and a deformed washer may cause leaking problems.

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