KX Syringe Filter Hydrophilic Polypropylene 30mm 0.45um with Pre-filter Cole-Parmer Instrument Company Ltd. 9 Orion Court, Ambuscade Road, Colmworth Business Park, St. Neots, Cambridgeshire. PE19 8YX U.K. Registered Address: 3rd Floor, 1 Ashley Road, Altrincham, Cheshire. 3rd Floor, 1 Ashley Road, Altrincham, Cheshire.