Whatman™ Polycap™ Capsule Filters

Polycap AS

Suitable for use with large volume aqueous samples, these capsules are pre-sterilized and are available with a filling bell to protect the outlet from contamination. The hose barb connections connect quickly and easily to 6-10 mm or 10-12 mm ID hoses. Also available with 1/4" MNPT inlets. The devices contain a nylon membrane that gives excellent flow rates and is very low in extractables. The capsules also contain a glass microfiber prefilter to prolong the life of the final filter and allow larger volumes and difficult samples to be filtered more easily. Use for salt solutions, cleaning/rinsing solutions, immunologicals, virus suspensions, buffers, nutrients or iIrrigation solutions.

Polycap TF

Designed for use with organic solvents and chemically aggressive solutions. The devices contain a PTFE membrane. Polycap TF is available with standard hose barb and 1/4" MNPT connections. Use for biotechnology: sterile vents and exhausts for growth environments, in-line sterilization ; laboratory: clean or sterile gases, solvents, reagents, drying gases;electronic photoresists, solvents, and gases for research; pharmaceutical vents, and in-line filtration for laboratory systems.

Polycap TC

Developed for safe and efficient filtration of critical biological and tissue culture solutions. The capsule contains two layers of polyethersulfone (PES) membrane, which is inherently hydrophilic, low in extractables, and has excellent flow rates. The membrane also exhibits low protein binding characteristics making it ideal for use with biologically sensitive solutions. The device is supplied pre-sterilized and has a vent to evacuate any air to allow fast filtration. The outlet of the capsule is protected to prevent touch contamination during set-up and has standard hose barb connections. Some capsules available with MNPT inlet fittings. Also available with filling bell to assure cleanliness during filling.

Polycap HD

Ideal for the filtration of aqueous and solvent samples at a range of pore sizes from 1 µm to 20 µm. The high loading depth filter design allows for clean-up of solution with high debris content. Polypropylene (PP) membrane. The capsules are available in two sizes and have standard hose barb connections for use with 6-10 mm or 10-12 mm ID hoses.

Polycap SPF

Specifically designed to prefilter serum in preparation for final filtration or sterilization. The capsule contains layers of glass microfiber prefilter, ultrafine glass microfiber and a final 1.0 µm polyethersulfone membrane for the easy filtration of heavily loaded samples. Polycap SPF is available in two sizes and has stepped barb connections for use with 6-10 mm ID hoses.