Maxfan Can Filters Flange 12 Plant Nutrients steel enclosure will stand up

Maxfan Can Filters Flange 12 Plant Nutrients steel enclosure will stand up steel enclosure will stand up to the toughest garden conditionsAdds CO2 only during daylight period by using the controllers integrated photocell50 parts per million (PPM) deadband hysteresis built into CO2 set pointMemory retains controllers settings even when the power is off15 amps 120 Volt 60 Hz3 year warranty 3" w this self contained package of exceptional products includes everything required to set you on the right course for gardening success Sizes from 12Spun steelFoam rubber seal6 hex drive self tapping screws These spun steel flanges come with a foam rubber seal and 6 hex drive self tapping screws forming a perfect seal with Can Filter products