The frame is made with one continuous piece of chipboard to guard against corner separation. The filtering medium is continuous filament spun glass. Standard grade furnace filter
Features
Width: 20 in.
Length: 20 in.
Height: 1 in.
Filter Material: Poly
Minimum Efficiency Reporting Value: 4 MERV
Filters Pollen: Yes
Media Type: Poly
Filter Frame Material: Moisture Resistant Die Cut Chipboard
Filters Dust: Yes
The frame is made with one continuous piece of chipboard to guard against corner separation
Protects against household dust and lint
The filtering medium is continuous filament spun glass
Standard grade furnace filter
Specifications
Dimension: 20.5" H x 10.75" W x 20.25" L