PROFESSIONAL BREWING KITS ：Beer carbonation cap，1 gas ball lock disconnect and stainless steel swivel nut ，2 hose clamp，1 flat rubber gaskets，2 CO2 O-rings Gasket，5ft Gas Line。. VERSATILE APPLICATION : Detachable 5/16’’ barb connect gas and beer lines suitable for PET bottles, beer, soda, water, juice carbonation.
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