Briggs & Stratton NON GENUINE Air Filter ST1005891 (Genuine Part number 399806)
FITS MODELS:
253700, 256700, 280700 and 281700
2 5/8'' (66.7mm) w x 8 1/2''
(215.9mm) L x 2 5/8'' (66.7mm) HT
Uses 100-842 pre filter