Flanders Pre-Pleat 40 LPD achieves the highest dust holding capacity and the lowest pressure drop in the industry. These filters are UL 900 classified. 100% synthetic non-woven， proprietary media that can be recycled. Newly designed expanded metal is continuosly laminated on the air leaving side to provide pleat stability while eliminating flutter during operation. Heavy-duty， two piece， moisture-resistant frame includes diagonal and horizontal support members bonded to the media on the air entering and exiting sides for unsurpassed frame strength.

• Brand Name: AAF Flanders
• Sub Brand: Pre-Pleat
• Width: 20 in.
• Height: 20 in.
• Depth: 4 in.
• Filter Material: Synthetic
• MERV Rating: 8 MERV
• Pleated: Yes
• Product Type: Air Filter
• Number in Package: 1 pk
• Actual Size: 19-3/8 x 19-3/8 x 3-3/4 in.
• Electrostatic: No
• Filters Smoke: Yes
• Trimmable: No
• Filters Bacteria: Yes
• Filters Viruses: No
• Filter Frame Material: Cardboard
• Filters Pollen: Yes
• Filter Class: Class II
• High Efficiency: No
• Metal Mesh Support: Yes
• Air Filter Size: 20x20x4
• Filters Dust/Lint: Yes
• Filters Mold Spores: Yes
• Temperature Rating: 180 deg F