EVERPURE SCALESTICK HYDROBLEND CARTRIDGE;FITS OLD STYLE AR-X ANDCURRENT SR-X FEEDER HOUSINGS.;FOR 10" PRE-FILTER BOWLS;A UNIQUE SPECIALLY BLENDED COMPOUND THAT INHIBITS MINERAL;SCALE DEPOSITES AND PROVIDES CORROSION PROTECTION IN LOW;FLOW WATER FEED EQUIPMENT.;DESIGNED TO PROVIDE A CONTROLLED AMOUNT OF HYDROBLEND FOR;LONG TERM PROTECTION FOR WATER USING APPLIANCES;STEAMERS, COMBI OVWNS, COFFEE, ESPRESSO, ICE MACHINES;AND PROOFERS.