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20x24x1 MERV 13 filters are right on the cusp of being classified as “medium efficiency MERV pleated air filters” and “high-efficiency MERV pleated air filters
Temperature: 140°F (60°C)
**Please note that Whirlpool has updated the Pre and Post filter set
that is just the initial efficiency…after a few complete air changes
Duracraft AC811 Humidifier Filter 14x25x2 20x24x1 MERV 13 filters areThe Duracraft AC 811 Humidifier Wick Filter is a replacement natural moisture filter. This filter will keep your humidifier running like new. Dimensions: Approximately 7" x 7 1 4" x 2"
US$ 237.50
US$ 16.99
US$ 13.99
