Designed for the value-minded contractors
407 1/2 In
Rockwool delivers the sound absorption you want and the fire resistance you need
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simply thread the elbow into one end of the duct (no clamp needed)
BestAir Extended Life Humidi-Wick EF21 Humidifier Wick Filter Pack options:Pack of 1 Designed for the value-minded contractorsPatented reinforced design for longer life and better efficiency than standard expanded wicking filters. Traps impurities in the water. Anti microbial treated. Fits Essick Air Moistair MA 0600, 0800, 08000, 0950, 1200, 1201, 09500, 12000, 12001, 12010. Fits Kenmore 14410, 14411, 14906, 14410, 144105, 144106, 144107, 144115, 144116, 144117, 1144118, 154120, 15408, 154080, 15412, 17006, 29706, 29979, 29980, 29981, 29982, 29988, 29980C, 299795, 299796C,