LL Building PR1DBL Roof Mount Power Ventilator, Black Motor Arbors & Mandrels 4-1/2" x 3-15/16" square plate

4-1/2" x 3-15/16" square plate

Drop cloths butyl and rubber coated drapery

Beveled nail slot

including pre-installed wax-coated black plastic foundation for easy viewing of hive activity

Wider area for more support

LL Building PR1DBL Roof Mount Power Ventilator, Black Motor Arbors & Mandrels 4-1/2" x 3-15/16" square plateHighlights: Color: Black 14" blade diameter. For roof or gable mount. Flashing size 21" x 22 1 4" 14 attic air exchanges per hour. Rust resistant metal construction. Automatic adjustable thermostat included. Heavy duty screen deters animals and insects. Large pre punched flashing for easier installation and less chance of leaks. Air flow of 1000 CFM (Cubic Feet Per Minute) for attics up to 1,600 sq. ft. for optimal perfomance.