Marketing InformationPentair PentekĀ® standard bag vessel assemblies keep your system on stream longer by reducing bag filter change time. They are made of lightweight corrosion-resistant polypropylene to give you all the strength you need without the weight. Install as a duplex system for totally uninterrupted flow rates. All PBH series vessels come complete with gauge, wrench and 3/8 in drain valve. The single large ACME thread closure ensures quick opening and positive sealing. Filter bags are available in polypropylene felt, absolute-rated high-efficiency polypropylene and nylon monofilament mesh ideal for filtering and straining applications from 1 to 800 micron. Molded from rugged reinforced polypropylene, bag vessel filter housings offer outstanding chemical compatibility and are ideal for use in a variety of low-flow applications. These applications include residential pre-filtration, food service, along with commercial and industrial applications for water filtration and chemical filtration. They are equipped with a black reinforced polypropylene cap.