Ceramic replacement element for the Katadyn Drip Gravidyn and Ceradyn, Restores your filter to working order after clogging, Fieldcleanable 0, 2micron ceramic element, Filters up to 13,000 gallons of water, 1gallonperhour flow rate; weighs 1 pound 8 ounces, Dimensions: 13L x 13W x 13H, SKU: SPTMN3564