4 Pack 16x20x1 MERV 1 Fiberglass Air Filter

Why it's a great deal

• Equipment Protection & Consistent Indoor Air: MERV 1 fiberglass panel filter safeguards HVAC, furnace and air conditioning systems against dust and debris; it delivers reliable filtration performance for up to 30 days to maintain steady indoor air circulation.

• Space-Saving Stackable Nested Design: Innovative nested stacking structure enables compact storage. This 4-pack set can be nested together to save room inside garages, utility and mechanical rooms for convenient spare filter storage.

• Robust Frame & Secure Filter Media: Heavy-duty one-piece chipboard frame minimizes corner separation; paired with self-locking continuous filament spun glass media, the media resists shifting or tearing during installation and regular use.

• Low Pressure Drop for Energy Efficiency: Optimized fiberglass media achieves a low initial air pressure drop, reducing fan resistance for heating and cooling equipment, helping lower power consumption and boost overall energy efficiency.

• UL Class 2 Safety Certified & Proven Design: UL Class 2 certification complies with established industry safety standards. The classic continuous filament spun glass filter design has protected residential HVAC systems reliably for decades, suitable for everyday household use.