Air Filter Fits Stihl Back Pack Blower BR320, BR 340, BR 400, BR 420, 4203-141-0301 & 4203-120-1500, 4203-007-1028, Stens: 102-414,102-412, Rotary 27-10963, 27-13159, Oregon 30-137,
Brand New Air Filter Kit fits Stihl Back Pack Blower Fits Stihl Back Pack Blower Model # BR 320, BR 340, BR 400 & BR 420Size: 5-1/8" (L) x 3-1/2" (W) x 1-1/2"(H) OEM P/N:Stihl P/N: 4203-007-1028 (Air Filter & Pre-Filter)Stihl P/N: 4203-141-0301 (Air Filter) & 4203-120-1500 (Plastic Pre-Filter)Stens P/N: 102-414 & 102-412Oregon P/N: 30-137Rotary 27-10963 & 27-13159