Whatman(R) ZapCap(R) CR Bottle Top filtersZapCap(R)for filtration of medium volumes cell culture media and HPLC SOLUTIONons.features and benefitsComplete 500 ml units with tubing nozzle for attaching to bottles (bottle-top)Connection seals on any standard bottles 33 to 45 mmMembrane diameter 76 mm filter area 39.2 cm2ZapCap-S with included borosilicate prefilter for high flow ratesZapCap-S Plus with integral borosilicate prefilter for very high flow ratesZapCap-CR the chemical-resistant bottle-top filterCan be used up to 50AºCZapCap-CRfiltration of HPLC SOLUTIONons1. Polyamide membrane filters (NYL) for filtering down to 0.2 mum in HPLC/fPLC SOLUTIONons when the column packing is 10 mum 2. PTfE membrane filters for filtering down to 0.45mum in organic SOLUTIONons strong acids or aldehydes ZapCap-Sfiltration of cell culture media1. Cellulose acetate membrane filters (CA) with extremely low protein binding for cell culture media and other aqueous SOLUTIONons2.