Air Filter Replaces Husqvarna 445 445e 450 450e Chainsaw #44 08 08-02# Fuding Jingyi Rubber & Plastic Co., Ltd. Base Info Model NO.:Husqvarna 445 445E 450 Description Pre:Husqvarna Partner K750 Air and Pre Filter 506 36 72 03 Next:Stihl Fs90 Fs100 Fs110 Fs130 for Mix Engine Air Filter Replaces 4180-120-1800