Whatman Polycap AS capsule filters from Cytiva combines a glass microfiber (GMF) prefilter over a nylon membrane final filter to provide maximum filtration of difficult, particulate-laden solutions.
The Whatman Polycap AS (aqueous solutions) are specifically designed for high-volume filtration of aqueous sample solutions in a compact size. With a nylon membrane filter and GMF prefilter, these filters have a long usable life.

First layer (GMF) acts as a prefilter to ensure longer membrane life and higher filtration efficiency.
Nylon membrane filter layer is inherently hydrophilic, has low extractables, is biosafe, and has excellent flow rates
Polypropylene housing is thermally fused (no glues, adhesives, or extraneous materials), reducing extractable levels

• Max. recommended pressure: 4,1 bar (60 psi)
• With stepped barb connections for hoses with inner diameter 6-9,5 mm (1/4-3/8")
• For unidirectional use
• Sterile: Yes
• Autoclavable: 121 °C for 20 minutes at 1,0 bar (0,1 MPa, 15 psi) except for the detachable filling bell.