These handy adapters can be used with a variety of vacuum manifolds such as the AF-0060 and AF-0061. Style A is designed for compression (Cajon™) fittings, but can also be used with heavy-wall vacuum tubing. Style B is designed for rubber vacuum tubing. Styles C and D adapt to standard taper joints, and the AF-0070-20 offers a sharp right bend. Each adapter comes with one CG-305-116 #15 O-ring, although we you may want to order more in case you lose it down the sink. All of these use a CG-150-06 stainless steel clamp (not included).