LifeSupplyUSA 4 Pack Small Carbon Pre Filter Replacement for Sears Kenmore 83377 fits models 83234 and 83353 Box of 4 Carbon Pre-Filters - Fits Sears Kenmore models 83234 and 83353. Fits Sears Kenmore models 83234 and 83353 Helps effectively filter airborne irritants such as smoke, pollen, dust, mold spores, pet dander and fabric fibers For optimum performance, replace filters every 2 to 3 months. Captures 99.99% of particles Brand New, Individually Sealed - By LifeSupplyUSA