To tap a commercial keg, you need a Sanke Coupler (also called a keg tap) that matches the specific brewery's keg valve. While most North American beers use a standard "D-Style" coupler, many imports and craft specialties require different designs.
Popular Sanke Coupler Styles
D-Style (American Sankey): The standard for nearly all North American breweries (e.g., Budweiser, Coors, Miller, and local craft breweries).
S-Style (European Sankey): Features a longer probe than the D-style. Used for many European brands like Heineken, Stella Artois, and Amstel.
D1534: KOMOS S-Style European Coupler w/ PRV.
A-Style (German Slider): A "slide-on" style used by many German breweries like Warsteiner, Spaten, and Paulaner.
D1516: A-Style German Slider.
G-Style: Used for British brands like Bass and Boddingtons, as well as Anchor Brewing.
D1530: G-Style Coupler.
U-Style (Guinness/Harp): Specifically designed for Guinness and Harp kegs.
D15201: U-Style "Guinness" Coupler.