Does anyone have a complete list of all compatible breweries? I'm aware of Ayinger, HP, Paulaner and Spaten (my focus is Germany) but curious about Augustiner, Heller-Trum and Hofbrau.
I've always used the micromatic list. They have Hofbrau as S. For those I couldn't find, I've had to ask the store or distributor. http://www.micromatic.com/draft-keg-beer/keg-taps-couplers-cid-801.html
Update for future reference: B. United responded to an email. Should be noted they provide excellent customer service. Schlenkerla kegs are currently a mix of American and European kegs. European could be an A, G or S fitting. B. United working to change over all old kegs to American D style.
I've never quite figured this part of the business out. Are the European breweries buying the American system kegs there now? I got a keg of St Bernardus 12 last year and it was in a brand new 5 gallon Microstar keg with D coupler. I wonder if we will start seeing more overseas breweries going to a D system.
Not sure about other breweries but Schlenkerla exports in refrigerated tankers and fills kegs in the States. Wouldn't complain with more European on the D; not going to have 3 or 4 couplers on hand.