Item   Description Price High-Output Replacement Filter Cartridge High-Output Replacement Filter Cartridge $23.90 Sealed Countertop PLUS Sediment Washable Prefiltration Filter $18.95 Hand-Held Replacement Filter Cartridge 2-Pack Hand-Held Replacement Filter Cartridge 2-Pack $18.90 1/4" tube diverter 1/4" Countertop water filter Diverter. $9.95 CRYSTAL QUEST® Washable Prefiltration Filter Helps remove the sediment thus enabling your filter to work more efficiently. Product:$18.95 CRYSTAL QUEST® Backwash Kit   back wash kit $2.49