Part no. RHK-0.6.11 Fitment: Husqvarna TC 449 2011-2013 Husqvarna TE 449 2011-2013 Husqvarna TE 511 2011-2013 RHK Filters are designed and manufactured to increase airflow whilst ensuring the ultimate level of protection. RHK Filters consist of an outer layer of coarse open-pore foam which catches large dirt, grime and sand particles. The 2nd inner layer of fine open-pore foam aids in catching minute & finer particles whilst delivering maximum air flow.