AISEN Air Filter withFuel Filter Line Hose Tube Spark Plug for Husqvarna 261 262 268 268 Special 272 394 Gas Chainsaw Replace 503 44 72 01 Replace manufacturer part no. 503 44 72-01, 503 44 72-03, 503 44 72-04 Fit models: Husqvarna 261 EPA, 262, 268 268 Special, 272 272 XP, 394 394 EPA chainsaw Package include: 1 x air filter, 1 x spark plug, 1 x fuel filter, 1 x 2 feet fuel line hose