Round Vent Cover, PP Plastic Detachable Air Vent Exhaust Louver for 4" - 4.3" Diameter Hole 2pcs Eyelets Key can be removed from

Key can be removed from the locked position while can not be removed from the unlocked position

Thread Length: 24

Fit Filament Diameter: 1

Model: KAO-5H

with coil voltage DC 12V 40A eletromagnetic relay

Round Vent Cover, PP Plastic Detachable Air Vent Exhaust Louver for 4" - 4.3" Diameter Hole 2pcs Eyelets Key can be removed fromSpecification: Material: PP Plastic Finish: Polishing Fit Hole Diameter: 100mm 110mm 3. 94" 4. 33" Inner Diameter: 96mm 3. 78" Mounting Diameter: 100mm 3. 94" Total Size: 132mm x 37mm 5. 2" x 1. 46" (OD*T) Package Content: 2pcs x Round Vent Cover Description: Made of PP plastic, with corrosion resistance. Easy installation: can be installed on the wall or ceiling. Just insert it directly into the vent hole. Suitable for exhaust and ventilation of