Quest Return Air Duct Collar for Overhead Dehumidifiers Size:Quest Return Air Duct Collar for Overhead Style Dehumidifier - 105, 155, 205, & 225 Only Using a Dual Beam NDIR

Using a Dual Beam NDIR (Non-Dispersive Infrared) sensor

the Spartan Series® CO2 Controller/Monitor allows you to supercharge your garden at an affordable price

15 Amps Maximum/120 V/60 Hz

Select CO2 ppm levels at 1000 ppm

high-density polyethylene material

Quest Return Air Duct Collar for Overhead Dehumidifiers Size:Quest Return Air Duct Collar for Overhead Style Dehumidifier - 105, 155, 205, & 225 Only Using a Dual Beam NDIRThis accessory allows a limited amount of ductwork to be attached to the intake on Quest Dual dehumidifiers. This allows the dehumidifier to be located outside of the indoor garden. Be sure to also purchase the supply air attachment (#310784) to attach ductwork to the air outlet and send dry air back into the garden. This 12 in flange fits Dual 105, 155, 165, 205 and 225 only.