16-3/8 x 21-1/2 x 1 merv 11, mpr 1000 pleated ac furnace 1" air filters by pamlico. quantity 6. actual size: 16-3/8 x 21-1/2 x 3/4

Exact dimensions: 16-3/8 x 21-1/2 x 3/4 | nominal size: 16-3/8 x 21-1/2 x 1 | filters and captures particles such as allergens, pet dander, pollen, dust, bacteria, smoke, mold spores and smog. merv 11, mpr 1000, fpr 8 filtration performance rating designed to filter microscopic particles, but still allows cleaner air flow to go through. outperforms fiberglass, washable, and non-electrostatic air filters. simple to install and recommended to replace every 60-90 days for best results with your heating & ac cooling system or hvac system. well-made constuction for commercial, home, and industrial applications. dual beverage board frame will not buckle in tougher than normal conditions. manufactured in usa. available in 1”, 2 “, and 4” depths with large variety of sizes. inexpensive quality replacements for carrier, bryant & payne 1" filters.