Type B polypropylene cam and groove fittings include a female cam x male NPT connection. Type B camlock fittings are most often used with Type F adapters of identical size, and can also be used with Type A, E, and F adapters, and Type DP dust plugs. Polypropylene (also called PP) is a thermoplastic material that resists UV and weathering. Type B polypropylene camlock couplings are used in wine production, pharmaceutical processing, and chemical storage.