HIPA Fuel Filter 503-443201 for Husqvarna 36 40 41 42 45 50 51 55 61 232 268 272 334 335 336 338 339 340 345 346 350 351 353 357 359 362 365 372 385 390 394 455 460 570 575 Chainsaw Replacement manufacturer part number: 503-443201 For 3/16" fuel line hose Used on most Husqvarna gas chainsaw. Package include 5pcs fuel filter