Celltreat 229717 Bottle Top Filter, Sterile, Graduated, PES Filter Material, 0.22µm Pore size, 75mm Diameter, 500mL Volume (Case of 24): Science Lab Supplies: Amazon.com: Industrial & Scientific
Amazon.com: CAP FILTER Water Filtering Cap for Portable Survival & Camping Gear, Water Purifier Compatible with Water Bottle (Bottle Cap Replacement), Supply for Hiking Camping Travel Fishing (for Mineral Water) : Sports
Steritop Threaded Bottle Top Filter Sterile, 1000 mL Steritop Quick Release-GP 45 mm threaded bottle top filter with 0.22 µm pore size fast flow polyethersulfone (PES) Express PLUS membrane. | Sigma-Aldrich
Bottle cap filter removes impurities from drinking water
Nalgene™ Rapid-Flow™ Sterile Disposable Bottle Top Filters with PES, CN, SFCA or Nylon Membranes
Biologix Laboratory Vacuum Filtration Unit Bottle Top Filter, 500mL Funnel and Receiver, PES, 0.22um, 12/CASE: Amazon.com: Industrial & Scientific
250mL Bottle Top Vacuum Filter,with 0.22um Pore Size PES(polyethersulfone) Membrane,Sterile Disposable Vacuum Filter Units,Individually Packaged,case of 12, by Biomed Scientific: Amazon.com: Industrial & Scientific
Bottle top vacuum filtration system, WHEATON® | VWR
Shop for HydraPak 42mm Filter Cap | GOHUNT
Amazon.com: CAP FILTER Water Filtering Cap for Portable Survival & Camping Gear, Water Purifier Compatible with Water Bottle (Bottle Cap Replacement), Supply for Hiking Camping Travel Fishing (for Mineral Water) : Sports