ReservePro 16x25x5 GF 4511 MERV 11 fits Mac 1400 Air Cleaners. Actual Size 15 5/8 x 24 3/16 x 4 15/16. Case of 3 Made by Furnace Filters.Ca 16x25x1 Replaces Aprilaire 401 and Lennox

Replaces Aprilaire 401 and Lennox X0444 Filters

We highly recommend disconnecting the electrical power to the Air Cleaner using a qualified Technician

#4232 Blue Orifice

Carrier Model 31MF

" for Air Cleaner Model PCO-20C

ReservePro 16x25x5 GF 4511 MERV 11 fits Mac 1400 Air Cleaners. Actual Size 15 5/8 x 24 3/16 x 4 15/16. Case of 3 Made by Furnace Filters.Ca 16x25x1 Replaces Aprilaire 401 and LennoxMERV 11 GeneralAire GF 4511 4541, ReservePro 16 x 25 x 5 for MAC 1400 Air Cleaners This is an Aftermarket Generic Product Manufactured in Canada Actual Size 15 5 8" x 24 3 16" x 4 15 16" (with foam strips) MERV 11 Rated Also Fits: Source 1 # S1 FM10162505, S1 MAC10162505; Trion Air Bear Supreme 1400, #255649 105; Skuttle DB0 0025 016, #448 1; Ultravation 90 006, #91 005 Case of 3