S System - Keg Coupler - Tap w/ Blue Lever Handle "S" system is used by many European breweries, also known as European Sankey. Distinguished by it’s longer, narrower probe than the D System. It is used by breweries such as Heineken, Becks, Amstel Light, and Pilsner Urquell. Visit ourbeer system listing for an expanded listing of beers that use the "S" system valve. Do all brands of beers use the same keg tapping equipment? The keg coupler connects to the keg valve, "tapping" the keg. Both the gas line from the CO2 tank / regulator and the beer hose to the beer faucet attach to the coupler. Beer Keg Tap Features: Stainless Steel body improves durability and resistance to chemicals Stainless Steel handle fork for added strength Tin-nickel plated probe is resistant chemicals and won’t chip like chrome Short handle is ideal for smaller diameter kegs Specifications: System"S" (European Sankey) Body Material303 Stainless steel Probe MaterialTin-Nickel Alloy Plated Handle ColorBlue Handle StyleLever Gas Port3/8" O.D. Barb (To fit 5/16" I.D. Gas Hose) Beer Port7/8"-14 Thread (U.S. Beer Industry Standard) Height3-13/16"