Pre-Filter / Wacker 0160459Pack Size:1Wacker 160459, Wacker 0160459Ratio Parts 041-5751Wacker BS-50-2, BS50-2i, BS50-4, BS50-4s, BS60-2i, BS60-4, BS60-4s, BS70-2i and DS70Width: 3 5/16 ", Length: 4 1/2 ", PPI 60, Green Color