Description
Actual size is 20.75 x 20.63 x 5. Accumulair brand: 20x21x5 Electro-Air SST 16C28S-010 substitute whole house air filters, exactly engineered to replace the name brand Electro-Air SST 16C28S-010 air filters. Fully box-formed with no assembly or combs required. MERV graded to ASHRAE 52.2 test specs establishing performance equal to the original manufacturer Electro-Air SST 16C28S-010 filter. Note: Example filter image as shown is not the actual dimensions and is displayed for design purposes. OEM names and Electro-Air SST 16C28S-010 part numbers used for filter substitution purposes only.