Replacement Air Filter, Fits B&S 475 & 500 Series Engines With A Range Of 148CC - 158CC, Also Fits Previous Classic, Sprint & Quattro Series Engines With A Range Of 3.5HP - 4.5HP, For Use On Brands Such As Craftsman, MTD, Poulan, Snapper & Many Others Equipped With The Listed Engines, Compares To B&S Model# 5088H.