Premium Air Filter: Soft gasket, better seal. Larger filter area, higher air intake. Less rubber flash, breathe better and higher gas mileage. Generic Model Air Filter: For 17211-zl8-023 17211-z8b-901 push lawn mower, part gc160 gcv160 gc190 gcv190 gx100 gc135 gcv135 small engine, hrr216 hrt216 hrt217 hrx217 series elements. Wide Use Parts: For 491588s 491588 399959, , Craftsman, , Troy Bilt push/walk behind lawn mower / tractor air filter. Durability Air Filter: Sturdy metal stiffener screen design, hold shape better. Exact size, fit like a glove. especially against heavy dust and grass without anxious. Individually sealed, easy store, comfortable throughout the whole season. Size: 5-1/4 inch Length, 4-1/2 inch Width, 3/4 inch Height Individually Well-packed and Premium Replacement Air Filter, Also Compatiable for: for 17211-zl8-000 17211-ze8-000 17211-zl8-003 lawnmower air filter. for generator, pressure washer, water pump, tiller, cultivator motor air cleaner. for engine: gxv57,gcv135a, gcv190a, gcv190la, gs190, gsv190a, gsv190la gcv160a, gcv160a0, gcv160la, gcv160la0, gcv160le hrs216 hrb216 hrz216 hrx217vka series motor Blue Seal Rotary 2838, fits 3 and 5 horizontal engines 130200 series, starting at type 2915, 102-713, 7-08383. colour:Black + green Material:Plastic + filter paper Package Contents: 5 * excellent air filters Only the above package content, other products are not included. Note: Light 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.