Actual dimensions are 15.88 x 24.88 x 4.38. Accumulair brand, 16x25x5 Emerson SST 14C26S-010 substitute whole house filters, specifically designed to substitute for the OEM Emerson SST 14C26S-010 filters. Completely assembled so no forming or combs needed. MERV graded to ASHRAE 52.2 test classifications assuring performance to the level of the original manufacturer Emerson SST 14C26S-010 air filters. Note: The example air filter picture displayed is not true to size and is there to show construction purposes only. Company names and Emerson SST 14C26S-010 P/N are included for air filter substitution identification purposes only.