Tsunami Compressed Air Solutions › 21999-0818 Single CMM Annual Filter Maintenance Kit Image 1 of 1 21999-0818 Single CMM Annual Filter Maintenance Kit Sale Price: $186.30 Original Price: $207.00 20 Series 3-Stage Annual Maintenance Kit - Includes Oil Coalescing & Activated Carbon Elements (2 each) with O-Rings Quantity: Add To Cart Added! 20 Series 3-Stage Annual Maintenance Kit - Includes Oil Coalescing & Activated Carbon Elements (2 each) with O-Rings