Glasfloss ZL 12x24x4 MERV 10 Pleated 4" Furnace Filters (Box of 4)
Glasfloss ZL 12x24x4 pleated furnace air filters with MERV 10 rating. Designed for residential and commercial use; change every 3 months for optimal performance. One customer notes good fit in a 20x25x4 blower space
Highlights
- MERV 10 filtration
- Actual size vs nominal size
- Made in the USA
Pros
- MERV 10 filtration
- Actual size close to nominal
- Made in the USA
- Suitable for residential and commercial use
- Easy installation
Cons
- Size variations noted by some customers
- Depth not compatible with 5 inch or 4-3/8 inch filters
Best For
Features
- Actual size 11-3/8 x 23-3/8 x 3-3/4 inches
- Nominal size 12x24x4 with MERV 10 filtration
- Comparable to MPR 600-800 or FPR 5-6; pressure drop similar to MERV 8
- Made in the USA; suitable for residential and commercial use
- Recommended replacement every 3 months; box contains four filters; does not fit 5" or 4-3/8" deep frames
