The Kegco KTS98S-W Commercial Grade S System Keg Coupler is compatible with many European breweries such as Heineken, Beck's, Amstel Light and Pilsner Urquell. It has a stainless steel body and probe that are resistant to chemicals and won't chip like chrome. It has a longer, narrower probe than the D system. This keg tap has a clickable lever handle that easily clicks up and down to engage the keg, making it more convenient than the conventional lever style keg couplers that need to be pulled out before being pushed down. It also features a 55-psi pressure release valve to prevent over pressurizing the keg.