"CULLIGAN" SEDIMENT WATER FILTER CARTRIDGE *5 micron *Spun polypropylene cartridge *Reduces sediment, rust, scale, dirt, extra fine sand and silt *Protects water using appliances and fixtures from sediment build up *Use with city and well water supplies *Fits Ace nos. 4396024, 4396032 and other standard filter housings *Replace every 2 months or 8000 gallons *Twin pack *Discovery CON, NBR, SUP, EXP