Replacement Cartridge Filter for Clark 1389897

This Clark OEM Replacement Filter has media upgrades. Upgrades include 100% Nanofiber FR – Max Temp: 175F (MERV 15) and 100% Spun Bond Polyester: – Max Temp: 200F (upgradeable to 250F). The original part number is 1389897 with 13.84″ x 28″ x 9.479″ dimensions. It has an outside diameter of 13.8″, an insider diameter of 9.479″, and a length of 28″. The top is open. The bottom is open. The shape is round. The filter has 259.51 square feet of media. Standard features include 80/20 Cellulose/Polyester Blend – Max Temp: 175F (MERV 11). Disclaimer: This product is a direct replacement for the OEM filter. It has the same specifications but is a replacement cartridge filter manufactured by RoboVent and our partners for the replacement of the Clark filter.