COMPATIBILITY: Wide Application for FX651V FX730V FX801V FD731V FD750D FD791D FH601V FH641V FH680V FH721V FH770D FH601D FH641D FH680D FH721D, fit for C940-C980, CH18-CH1000, CV16-CV1000, LH630-LH775, LV625-LV680 16-26 engines Outer Air Filter Replace for : 25 083 01, 25 083 01-S; Replace for : 11013-7020, 11013-7044; Replace Part Number: P821575,M131802, M144100, M164264, M170281 & MIU12457,AF25551. Inner Air Filter Replace for : 25 083 04, 25 083 04-S; Replace for : 11013-7019, 11013-7045; Replace Part Number: P822858, M131803, M144098,AF25552. 99% FILTERATION EFFICIENCY: Designed for low flow resistance, this air filter is composed of high-density, multi-fiber medium. With a superior dirt keeping capacity, it collects 99% of airborne particles effectively Color: Material: plastic Package Contents: 2 x outer air filter 2 x inner air filter 1 x filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.