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Knob-operated worm gear adjusts butterfly valve, to full open or close. Controls volume evenly, not air pattern minimum air restriction. Steel ring has brown enamel finish. Includes adjustable handle.

4 In. R2 Pro wall exhaust hood white, Innovative damper design prevents back drafts and heat loss. Designed for maximum airflow. Energy efficient. Weighted damper prevents back-draft. 100% gasket...

Complete your wood stove installation project with this Imperial Stove Pipe Adjustable Elbow. Featuring a 0 to 90-degree adjustable design, the stove pipe elbow allows for angular and gradual turns...

Adjustable periscope 0 inches to 5 inches. Use where outlets overlap or are very close. Baffles help direct airflow in 3-inch to 5-inch situations. Sections are not reversible. Draw band female...

Concrobium Moisture Grabbers XL provide humidity reduction technology for large, indoor areas. The unique water-absorbing pouches absorb and eliminate excess moisture in areas that are prone to...

Cast-iron. Converts 30 gallon or 55 gallon drum into woodburning heater. Includes cool touch cam-lock type door, spin dial draft control, mounting legs, stovepipe collar and hardware. Barrel and...

4 In. dryer wall vent cap. Modern, flush mount design with magnetic seal that allows for maxiumum air flow and easy clean access. Constructed with powder coated galvanized steel.

Sludge Treat storage tank additive cleans and conditions heating system fuel oil. Prevents fuel-related failures, improves combustion efficiency, reduces soot formation and conserves energy. Hercules...

True filter, compatible with the Perfect Aire 1PAPUV27 air purifier. Captures 99.97% of all airborne particles as small as 0.3 microns such as , viruses, dust, dust mites, mildew, mold spores, pet...

The Lambro 3-1/4 In. x 10 In. plastic exhaust vent is ideal for venting through the wall. This vent is used for bath fan exhaust, range hood exhaust, microwave exhaust and other general venting...

Complete your wood stove installation project with this Imperial Stove Pipe Adjustable Elbow. Featuring a 0 to 90-degree adjustable design, the stove pipe elbow allows for angular and gradual turns...

Stamped steel construction with turnback frame. 2 grille bars to an inch 40 deg. down defection. Size in description is opening size. White.