For Stihl: TS410 TS420. 3x Air Filter. -This item is intended for professional installation, instruction manual is not included. Defective or Wrong Products. 2.Non-defective and Right Products. Manufacture Part Number： 4238 141 0300, 4238 140 1800, 4238 140 4401,4238 140 4402, 4238 140 4403, 4238 140 4404.
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