Air Filter / Shindaiwa 20000-81740SPack Size:1Shindaiwa 20000-81740, Shindaiwa 20000-81740SJ. Thomas SH-578, Landscaper Express 10-0902, NHC 207-7130, Oregon 55-231, Rotary 5864Shindaiwa B40, B45, BP35, C20, C25, C260 and C35 brushcutters; LT20, T20,T25, T260, T260B and T261 trimmers; LE260 and LE261 lawn edgers; HT20 hedge trimmersOD: 2 3/8 ", Height: 3/8 "