Briggs & Stratton GENUINE Air Filter 392642
FITS MODELS:
290000, 294000, 303400, 303700, 302900, 350700, 350400, 351400, 351700 and 400400-422400
Do not use this filter on idustrial concrete saws
5 5/8'' (142.9mm) ID x 7'' (177.8mm) 
OD x 2 1/4'' (57.2mm) HT
Uses 100-743 Pre Filter