Pre Filter For Defendair

Second stage HEPA 500 MERV 8 pre-filter. Captures finer particles to help extend the life of the HEPA filter. Synthetic fiber filter media rated at 30% efficiency. Sturdy frame won't "blow out" under heavy use.

• Synthetic fiber filter media rated at 30% efficiency
• Low pressure drop and superior efficiency
• High dustholding capacity
• Extends life of HEPA filter element
• Sturdy cardboard frame
• High dustholding capacity
• Minimal airflow loss means superior efficiency

• Product Type: DefendAir 2nd Stage Pre-Filter
• Width: 15-3/4 in
• Height: 15-3/4 in
• Depth: 3/4 in
• Filter Efficiency: 30%
• Weight: 0.500