Wide Mounting Kit for Filters / Traps / Purifiers (With Hardware) . To be used with 500 cc and 750 cc Stainless steel ZPure Filters, all 500 cc Legacy Filters including the Model 300, 500, 1000 and CO2 Filter, as well as the 240 cc and 400 cc SPure Plastic Filters. Contains 2 clips and associated hardware for mounting 1 gas filter. Use with 500 and 750 cc stainless steel ZPure filters and 400 cc SPure plastic filters.