Katadyn Exstream Virustat (Complete Kit) Water Filter Accessories 8011555

This kit contains complete replacement parts for the Exstream Water Purification Bottles; Pre-Filter, Cyst Filter and ViruStat Cartridge. - Change the ViruStat Cartridge after 200 refills - Change the Cyst and Pre-Filter when water flow becomes constrictedManufacturer: Katadyn. Manufacturer#: 8011555. Approximate Shipping Weight (lbs): 0.45.