OMWFilter 110 Replacement Filter Compatible with AprilAire Air Purifier Models 1110 113, Merv 11 Whole House Furnace Filters Size 16x20x4, 2-Pack

COMPABILITY: This OMWFilter furnace filter is compatible with AprilAire Whole House Air Purifier Models 1110. Please ensure to check your model number before placing an order MERV RATING 11: These HVAC filters feature Merv 11 filtration material, capable of filtering 85% of 3-10μm particles, 65% of 1-3μm particles and 20% of 0.3-1μm particles FOR OPTIMAL PERFORMANCE: The primary cause of filtration inefficiency is clogging of the filters. To ensure optimal performance, it is recommended to replace the filter every 6-12 months, depending on the quality of the air and frequency of use EASY INSTALLATION: Designed for hassle-free setup, this 110 replacement filter slides into place effortlessly, saving you time and effort NOMINAL AC FILTER SIZE: 16 x 20 x 4 inches (Note: Nominal size is an industry-standard measurement system designed to help you quickly identify the correct replacement filter. It is not the exact physical dimensions of the filter)