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The Davin DV-11-T fan controller with thermostat is designed to keep the temperature in your greenhouse or any kind of room
Thanks to the variety of its sources of active ingredients
completely power-free system that offers you five ways to feed and water your plants
The particle size lies within the Nano range
Back Draft Shutter 200mm (8") Shipping The Davin DV-11-T fan controllerWhen your extraction system is turned off a back draft shutter is the perfect way to stop air escaping from your room. It will also prevent unwanted cold hot air from coming back into the grow room when it is not wanted. A Back draft shutter is a cylinder shaped piece of equipment with 2 centrally mounted flaps. The air produced by your duct fan will cause these flaps to open, however when the duct fan is turned off the flaps will shut meaning no air
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