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ZapCap® bottle-top filters

ZapCap-CR, PTFE membrane, pore size 0.45 μm

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10443425, ZapCap® bottle-top filters, bottle-top filteration system, bottle-top filters


PTFE membrane






pack of 12 ea


Maine Mfg 10443425

filter capacity

500 mL

pore size

0.45 μm


suitable for (filtration of HPLC solutions)

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General description

Whatman® ZapCap® CR Bottle Top Filters


For filtration of medium volumes, cell culture media and HPLC solutions.

Features and benefits:
  • Complete 500 ml units with tubing nozzle; for attaching to bottles (bottle-top)
  • Connection seals on any standard bottles 33 to 45 mm
  • Membrane diameter 76 mm, filter area 39.2 cm2
  • ZapCap-S with included borosilicate prefilter for high flow rates
  • ZapCap-S Plus with integral borosilicate prefilter for very high flow rates
  • ZapCap-CR, the chemical-resistant bottle-top filter
  • Can be used up to 50ºC


Filtration of HPLC solutions:
1. Polyamide membrane filters (NYL) for filtering down to 0.2 μm in HPLC/FPLC solutions when the column packing is 10 μm
2. PTFE membrane filters for filtering down to 0.45μm in organic solutions; strong acids or aldehydes


Filtration of cell culture media:
1. Cellulose acetate membrane filters (CA) with extremely low protein binding for cell culture media and other aqueous solutions
2. Sterile filtration of solutions which cannot be autoclaved

ZapCap-S Plus

Sterile filtration and clarification of difficult-to-filter aqueous solutions.

Other Notes

Field of Use : For internal research use only. Products are not intended for diagnostic use or resale.

Legal Information

Whatman is a registered trademark of Cytiva
ZapCap is a registered trademark of GVS S.p.A.

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