| Shipping | Tax | Terms Shopping Cart 0 Items Request for Quote 0 Items All Categories > Clean Air Treatment > Filtration > Replacement Filter Elements > Watts - Filter Elements Watts - Filter Elements Click on a Product to view details. Watts - EK 600 Alternate Filter Elements (4) Watts - EKF 501-601 Alternate Filter Elements (3) Watts - EKF 901-A Alternate Filter Elements (9) Watts - EKF 901-B Alternate Filter Elements (9) Watts - EKF 901-H Alternate Filter Elements (9) Watts - EKF 901-T Alternate Filter Elements (9) Maintain Your Air Compressor Learn more about maintaining your air compressor by downloading our eBook on air compressor maintenance. Download eBook