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

• 【Food Grade Material】Made of food grade 304 stainless steel instead of chrome plated , which let our keg coupler adapter kit more healthier/ environmental/anti-corrosion/no rust/durable. All of O-ring gasket is made of food grade silicone
• 【Two Way to Identify Gas &Liquid Post】 The Gas Post has a subtle etched line around the top of the base (the liquid post has no etched line).The flaring of the metal on the liquid side is much wider than the gas side
• 【Quick & Easy To Convert】This Keg Coupler Adapter can combined with ball lock quick disconnect set that will convert the sanke style keg into a Cornelius style Ball Lock keg( easy to toggle between commercial and homebrew beers)
• 【Hand Or Plier To Install】Can install our ball lock keg conversion kit in 5/8 thread S-style &D-style keg coupler to use.You can use hand or the plier to lock each side grooves,then tighten the posts. Don’t over tighten to avoid deforming the washer
• 【Easy To Clean 】To clean this keg coupler adapter kit , you can infuse the clear water into your beer keg to operate one time just like exporting beer.Don’t suggest you take apart this conversion kit,cuz it is very difficult to reinstallation

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