A-B1799818-AI FILTER-AIR CLEANER CAOne New Aftermarket Replacement Air Cleaner Cartridge Filter Fits Briggs & Fits Stratton Engines This air cleaner cartridge filter (also known as a Filter Air Cleaner Ca) is a paper element cartridge designed to trap dirt, dust, and debris before they enter the engine's air intake system. Keeping the air intake clean ensures proper combustion, protects internal engine components from premature wear, and maintains peak engine performance in lawn