![Pall 4339 Air Monitoring Cassettes Three-Piece Unit, Unassembled, GN-4 Metricel Membrane (Mixed Cellulose Esters), Filter Size 37 mm, Device Diameter 4.2 cm, Pore Size 0.8 µm, Pack of 100: Amazon.com: Industrial & Scientific Pall 4339 Air Monitoring Cassettes Three-Piece Unit, Unassembled, GN-4 Metricel Membrane (Mixed Cellulose Esters), Filter Size 37 mm, Device Diameter 4.2 cm, Pore Size 0.8 µm, Pack of 100: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/51Ob7vf3CuS.jpg)
Pall 4339 Air Monitoring Cassettes Three-Piece Unit, Unassembled, GN-4 Metricel Membrane (Mixed Cellulose Esters), Filter Size 37 mm, Device Diameter 4.2 cm, Pore Size 0.8 µm, Pack of 100: Amazon.com: Industrial & Scientific
![Pall 1235 Anodized Aluminum Filter Holder, 47 mm in-Line Lab Filter Holder, Non-sterile, Lightweight Anodized Aluminum Filter Holder, Dimensions Length 5.7cm Diameter 5.9cm: Amazon.com: Industrial & Scientific Pall 1235 Anodized Aluminum Filter Holder, 47 mm in-Line Lab Filter Holder, Non-sterile, Lightweight Anodized Aluminum Filter Holder, Dimensions Length 5.7cm Diameter 5.9cm: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/31pQ8zm-uuL.jpg)
Pall 1235 Anodized Aluminum Filter Holder, 47 mm in-Line Lab Filter Holder, Non-sterile, Lightweight Anodized Aluminum Filter Holder, Dimensions Length 5.7cm Diameter 5.9cm: Amazon.com: Industrial & Scientific
![Pall MicroFunnel™ ST Filters Funnel with GN-6 Membrane 300 mL Pall MicroFunnel™ ST Filters Funnel with GN-6 Membrane | Fisher Scientific Pall MicroFunnel™ ST Filters Funnel with GN-6 Membrane 300 mL Pall MicroFunnel™ ST Filters Funnel with GN-6 Membrane | Fisher Scientific](https://assets.fishersci.com/TFS-Assets/CCG/Pall-Corporation/product-images/Lab_gri78ljb_main_500x500.jpg-650.jpg)