Suitable for example:
10 - 12 hp "middle-aged" "vertical shaft engines.
occurs in e.g. engine models; 253700, 256700, 280700, 281700.
(Length 219 mm, width 66 mm, height 67 mm)
Order a pre-filter at the same time with number 71-054.
Replace the original numbers:
Briggs & Stratton 491519, 399806, 399806S