FR1400U-108 White Rodgers 16x25x5 With Foam Strips. Actual Size is 15 1/2" x 24" x 4 3/8" Case of 3 GFI 4521 The Filter Branded ReservePro MERV

The Filter Branded ReservePro MERV 10 Rating is an Exact Replacement for Part # 000-0448-003

Inline Strainer #4004

Please verify the model number of your unit

and other compatible Aprilaire 600 humidifier models

Fits Aprilaire Humidifier Models 112

FR1400U-108 White Rodgers 16x25x5 With Foam Strips. Actual Size is 15 1/2" x 24" x 4 3/8" Case of 3 GFI 4521 The Filter Branded ReservePro MERVWhite Rodgers Replacement Part FR1400U Type 108 16x25x5 High Efficiency Filter Actual Exact Size is 15 1 2" x 24" x 4 3 8" MERV 8 Rated Case of 3 Please make sure this is the correct filter you are ordering. This filter is a 16 x 25 x 5 not the 16 x 26 x 5 FR1400 Type 100 also listed under White Rodgers Pick Up in Store $185. 00