SaferCCTV(TM) Air Filter Cleaner Replacement OEM Part# 530029811 530-029811 fitsHusqvarna 36 41 136 141 137 142 Chainsaw 1. Unique service can make you rest assured to buy--(1)60-days money-back guarantee. (2) Professional sellers, and professional guidance, have more air filter to choose . (3)Provide professional use tutorials(4) Often give away free tool products (because we clean stock). Please contact us if you need any of the above services 2. Replace part #: 530029811, 530-029811 3. Fit for Husqvarna model: 36, 41, 136, 141, 137, 142 chainsaw 4.This is the Non original aftermarket part, please check the size before buy it 5. SaferCCTV air filter from Factory; Professional technical support