Glasfloss ZL 16x24x4 MERV 10 Pleated 4" Inch AC Furnace Air Filters. Box of 4. Actual Size: 15-1/2 x 23-1/2 x 3-3/4

Glasfloss ZL 16x24x4 MERV 10 Pleated 4" Inch AC Furnace Air Filters. Box of 4. Actual Size: 15-1/2 x 23-1/2 x 3-3/4

Actual Size: 15-1/2 x 23-1/2 x 3-3/4 | Nominal Size: 16x24x4 Filtration Rating: MERV 10. Comparable to MPR rating 600 to 800, or FPR rating 5 to 6. Pressure drop is comparable to a MERV 8. Made in the USA. Ideal for residential and commercial use. For optimal performance, recommended to change at least every 3 months. Note: Does not replace 5" inch or 4-3/8" Depth filters. Please check actual filter size needed. Exact Size: 15-1/2 x 23-1/2 x 3-3/4 | Nominal Size: 16x24x4 ● Established in 1936. Glasfloss Industries is the oldest American owned and operated manufacturer of HVAC filters. The Glasfloss Z-Line Series filters achieve a MERV 10 rating per the ANSI/ASHRAE 52.2 Test Standard. This product has a heavy-duty beverage board incorporating durable material utilized for an encasing frame and an extended surface pleated synthetic media for lower pressure drop. Recommended for use for residential, office, commercial, schools, and in many other facilities.