ENCAPS. FILTER POLYVENT 4 0.2uM 25MM PTFE . PK.50Mounted in a rugged polypropylene housing. All have a low hold up volume. Dimensions 53 x 46mm diameter x length and with connections for 6 to 10mm bore tubing unless otherwise stated. Encapsulated filters for in line gas air filtration or venting isolation applications where a vessel contents require protecting from airborne contaminants, the environment requires protecting from the vessel contents, or sterility of the contents must be maintained