Briggs & Stratton NON GENUINE Air Filter ST1005545 (Genuine part number 270528)
FITS MODELS:
Most 170 and 190 series for 8 and 8 HP vertical engines
4 3/8'' (111.13mm) W x 8 3/4'' 
(222.25mm) L x 1 1/2'' (38.1mm) HT