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Free Shipping on most orders over $175 | Sales Tax in NJ only
Free Shipping on most orders over $175 | Sales Tax in NJ only

Climate Control

Climate control sets the foundation for consistent, high-yield grow. Our top-rated picks for premium HVAC units, dehumidifiers, humidifiers, fans, duct systems, and smart environmental controllers are designed to keep temperature, humidity, airflow, and CO₂ at optimal levels.

Discover fully integrated systems like multi-coil commercial dehumidifiers, mini split systems with heating and cooling, and smart controllers that dial in grow room climate via app monitoring. These tools prevent common issues like mold, heat stress, CO₂ imbalance, and inefficient HVAC operation by automating control with sensors and timed ventilation, ensuring consistent harvest-quality conditions from start to finish.

Score limited-time discounts on the brands and products growers trust most.

MrCool 2 Zone 18K BTU mini-split showing two 9K BTU air handlers with Grow Light Central branding.
Complete MrCool 2 Zone DIY mini-split kit with two air handlers, condenser, remotes, smart controller, and lines.
$2,619.00 - $2,619.00
$2,619.00
$2,619.00 - $2,619.00
$2,619.00

MRCOOL 2 Zone 18K BTU (9K+9K) 24 SEER2 Ductless Heat Pump DIY 5th Gen

MRCOOL

Easily heat or cool two rooms with smart zoning, quiet performance, and DIY setup that requires no special tools. The MRCOOL DIY Multi-Zone 18,000 ...

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$2,619.00 - $2,619.00
$2,619.00
$2,619.00 - $2,619.00
$2,619.00
MRCOOL DIY 2-Zone 48K BTU Mini Split Air Conditioner and Heat Pump with 36K and 12K Indoor Units for Large Grow Rooms
Complete MrCool 2 Zone DIY mini-split kit with two air handlers, condenser, remotes, smart controller, and lines.
$5,198.00 - $5,198.00
$5,198.00
$5,198.00 - $5,198.00
$5,198.00

MRCOOL 2 Zone 48K BTU (12K+36K) 22 SEER2 Ductless Heat Pump DIY 5th Gen

MRCOOL

Control temps in extra-large spaces with quiet comfort, dual zones, and a simple install that skips HVAC pros. The MRCOOL DIY Multi-Zone 48,000 BTU...

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$5,198.00 - $5,198.00
$5,198.00
$5,198.00 - $5,198.00
$5,198.00
MrCool 2 Zone 27K BTU (9K+18K) Ductless Heat Pump DIY 4th Gen Air Conditioners MrCool
Complete MrCool 2 Zone DIY mini-split kit with two air handlers, condenser, remotes, smart controller, and lines.
$3,563.00 - $3,563.00
$3,563.00
$3,563.00 - $3,563.00
$3,563.00

MRCOOL 2 Zone 27K BTU (9K+18K) 23 SEER2 Ductless Heat Pump DIY 5th Gen

MRCOOL

Heat or cool large and small rooms with smart zone control, whisper-quiet comfort, and simple DIY installation. The MRCOOL DIY Multi-Zone 27,000 BT...

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$3,563.00 - $3,563.00
$3,563.00
$3,563.00 - $3,563.00
$3,563.00
MRCOOL DIY 2-Zone 36K BTU Ductless Mini Split with 18K and 12K Air Handlers for Efficient Heating and Cooling in Dual-Room Grow Setups
Complete MrCool 2 Zone DIY mini-split kit with two air handlers, condenser, remotes, smart controller, and lines.
$4,163.00 - $4,163.00
$4,163.00
$4,163.00 - $4,163.00
$4,163.00

MRCOOL 2 Zone 36K BTU (12K+18K) 23 SEER2 Ductless Heat Pump DIY 5th Gen

MRCOOL

Cool or heat large zones with whisper-quiet performance, smart control, and a DIY install that skips the HVAC tech. The MRCOOL DIY Multi-Zone 36,00...

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$4,163.00 - $4,163.00
$4,163.00
$4,163.00 - $4,163.00
$4,163.00
MrCool 3 Zone 27K BTU (9K+9K+9K) Ductless Heat Pump DIY 4th Gen Air Conditioners MrCool
MrCool 3 Zone Ductless Heat Pump DIY 4th Gen Air Conditioners MrCool
$3,696.00 - $3,696.00
$3,696.00
$3,696.00 - $3,696.00
$3,696.00

MRCOOL 3 Zone 27K BTU (9K+9K+9K) 23 SEER2 Ductless Heat Pump DIY 5th Gen

MRCOOL

Control comfort in three zones with smart features, quiet operation, and simple DIY install that skips the HVAC bill. The MRCOOL DIY Multi-Zone 27,...

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$3,696.00 - $3,696.00
$3,696.00
$3,696.00 - $3,696.00
$3,696.00
MrCool 3 Zone 36K BTU (18K+9K+9K) Ductless Heat Pump DIY 4th Gen Air Conditioners MrCool
MrCool 3 Zone Ductless Heat Pump DIY 4th Gen Air Conditioners MrCool
$4,538.00 - $4,538.00
$4,538.00
$4,538.00 - $4,538.00
$4,538.00

MRCOOL 3 Zone 36K BTU (9K+9K+18K) 23 SEER2 Ductless Heat Pump DIY 5th Gen

MRCOOL

Control comfort in three rooms with smart zoning, quiet performance, and easy DIY install—no HVAC tech required. The MRCOOL DIY Multi-Zone 36,000 B...

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$4,538.00 - $4,538.00
$4,538.00
$4,538.00 - $4,538.00
$4,538.00
MrCool 3 Zone 48K BTU (24K+12K+12K) Ductless Heat Pump DIY 4th Gen Air Conditioners MrCool
MrCool 3 Zone Ductless Heat Pump DIY 4th Gen Air Conditioners MrCool
$5,571.00 - $5,571.00
$5,571.00
$5,571.00 - $5,571.00
$5,571.00

MRCOOL 3 Zone 48K BTU (12K+12K+24K) 22 SEER2 Ductless Heat Pump DIY 5th Gen

MRCOOL

Cool or heat three large zones with whisper-quiet control, smart features, and tool-free DIY installation at home. The MRCOOL DIY Multi-Zone 48,000...

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$5,571.00 - $5,571.00
$5,571.00
$5,571.00 - $5,571.00
$5,571.00
MrCool 3 Zone 54K BTU (18+18+18) Ductless Heat Pump DIY 4th Gen Air Conditioners MrCool
MrCool 3 Zone Ductless Heat Pump DIY 4th Gen Air Conditioners MrCool
$6,602.00 - $6,602.00
$6,602.00
$6,602.00 - $6,602.00
$6,602.00

MRCOOL 3 Zone 55K BTU (18K+18K+18K) 22 SEER2 Ductless Heat Pump DIY 5th Gen

MRCOOL

Heat or cool three large zones with smart control, quiet comfort, and tool-free DIY installation that cuts HVAC costs. The MRCOOL DIY Multi-Zone 55...

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$6,602.00 - $6,602.00
$6,602.00
$6,602.00 - $6,602.00
$6,602.00
MrCool 4 Zone 36K BTU (9K+9K+9K+9K) Ductless Heat Pump DIY 4th Gen Air Conditioners MrCool
MrCool 4 Zone 36K BTU (9K+9K+9K+9K) Ductless Heat Pump DIY 4th Gen Air Conditioners MrCool
$4,671.00 - $4,671.00
$4,671.00
$4,671.00 - $4,671.00
$4,671.00

MRCOOL 4 Zone 36K BTU (9K+9K+9K+9K) 23 SEER2 Ductless Heat Pump DIY 5th Gen

MRCOOL

Quietly cool or heat four rooms with smart control, energy savings, and an easy install—no HVAC tools or techs needed. The MRCOOL DIY Multi-Zone 36...

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$4,671.00 - $4,671.00
$4,671.00
$4,671.00 - $4,671.00
$4,671.00
MrCool 4 Zone 48K BTU (12K+12K+12K+12K) Ductless Heat Pump DIY 4th Gen Air Conditioners MrCool
MrCool 4 Zone 36K BTU (9K+9K+9K+9K) Ductless Heat Pump DIY 4th Gen Air Conditioners MrCool
$5,984.00 - $5,984.00
$5,984.00
$5,984.00 - $5,984.00
$5,984.00

MRCOOL 4 Zone 48K BTU (12K+12K+12K+12K) 22 SEER2 Ductless Heat Pump DIY 5th Gen

MRCOOL

Heat or cool four large rooms with smart zone control, ultra-quiet operation, and easy no-tech DIY installation. The MRCOOL DIY Multi-Zone 48,000 B...

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$5,984.00 - $5,984.00
$5,984.00
$5,984.00 - $5,984.00
$5,984.00
MrCool 5 Zone 48K BTU (12K+9K+9K+9K+9K) Ductless Heat Pump DIY 4th Gen Air Conditioners MrCool
MrCool 5 Zone 48K BTU (12K+9K+9K+9K+9K) Ductless Heat Pump DIY 4th Gen Air Conditioners MrCool
$6,045.00 - $6,045.00
$6,045.00
$6,045.00 - $6,045.00
$6,045.00

MRCOOL 5 Zone 48K BTU (12K+9K+9K+9K+9K) 22 SEER2 Ductless Heat Pump DIY 5th Gen

MRCOOL

Heat or cool five rooms with efficient zoning, quiet comfort, and an easy install that skips costly HVAC labor. The MRCOOL DIY Multi-Zone 48,000 BT...

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$6,045.00 - $6,045.00
$6,045.00
$6,045.00 - $6,045.00
$6,045.00
Hydrofarm Active Air Portable Air Conditioner white remote control with black buttons for speed, temperature, mode, sleep, timer, swing, and power.
Active Air portable air conditioner with top vent and side exhaust hose. Hydrofarm cooling unit.
Sold out
$589.99 - $589.99
$589.99
$589.99 - $589.99
$589.99

Active Air Portable Air Conditioner - 14,000 BTU

Active Air

Powerful, portable cooling for your grow space with smart controls, built-in dehumidification, and easy setup—no ductwork required. Beat the heat a...

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$589.99 - $589.99
$589.99
$589.99 - $589.99
$589.99
Sold out
Close-up shot of the outdoor unit of the MRCOOL DIY Ductless Mini Split Air Conditioner.
MRCOOL DIY Ductless Mini Split Air Conditioner - 5th Gen system showing both the indoor and outdoor units with connection pipes and accessories.
Deals on 2+ units
$2,899.00
$2,899.00 - $2,899.00
$2,899.00
$2,329.00
$2,329.00 - $2,329.00
$2,329.00

MRCOOL DIY 9K BTU 1 Zone Ductless Mini Split Air Conditioner - 5th Gen

MRCOOL

Heat and cool rooms up to 400 sq ft with smart control, R-454B efficiency, and no HVAC pro needed for install. Enhance your home’s heating and cool...

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$2,899.00
$2,899.00 - $2,899.00
$2,899.00
$2,329.00
$2,329.00 - $2,329.00
$2,329.00
Save $570.00 Save $0.00
Close-up shot of the outdoor unit of the MRCOOL DIY Ductless Mini Split Air Conditioner.
MRCOOL DIY Ductless Mini Split Air Conditioner - 5th Gen system showing both the indoor and outdoor units with connection pipes and accessories.
Deals on 2+ units
$2,599.00
$2,599.00 - $2,599.00
$2,599.00
$2,359.00
$2,359.00 - $2,359.00
$2,359.00

MRCOOL DIY 12K BTU 1 Zone Ductless Mini Split Air Conditioner - 5th Gen

MRCOOL

Effortless DIY install, smart control, and R-454B efficiency for heating and cooling rooms up to 550 sq ft all year long. Take total control of you...

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$2,599.00
$2,599.00 - $2,599.00
$2,599.00
$2,359.00
$2,359.00 - $2,359.00
$2,359.00
Save $240.00 Save $0.00
Close-up shot of the outdoor unit of the MRCOOL DIY Ductless Mini Split Air Conditioner.
MRCOOL DIY Ductless Mini Split Air Conditioner - 5th Gen system showing both the indoor and outdoor units with connection pipes and accessories.
Deals on 2+ units
$3,599.00
$3,599.00 - $3,599.00
$3,599.00
$2,909.00
$2,909.00 - $2,909.00
$2,909.00

MRCOOL DIY 18K BTU 1 Zone Ductless Mini Split Air Conditioner - 5th Gen

MRCOOL

Heat and cool up to 750 sq ft with R-454B efficiency, app + voice control, and zero-hassle DIY installation in hours. Upgrade your home’s heating a...

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$3,599.00
$3,599.00 - $3,599.00
$3,599.00
$2,909.00
$2,909.00 - $2,909.00
$2,909.00
Save $690.00 Save $0.00
Close-up shot of the outdoor unit of the MRCOOL DIY Ductless Mini Split Air Conditioner.
MRCOOL DIY Ductless Mini Split Air Conditioner - 5th Gen system showing both the indoor and outdoor units with connection pipes and accessories.
Deals on 2+ units
$3,699.00
$3,699.00 - $3,699.00
$3,699.00
$3,329.00
$3,329.00 - $3,329.00
$3,329.00

MRCOOL DIY 24K BTU 1 Zone Ductless Mini Split Air Conditioner - 5th Gen

MRCOOL

DIY install in hours with R-454B refrigerant, smart control, and year-round comfort for rooms up to 1,000 sq ft. The 5th Generation MRCOOL DIY 24K ...

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$3,699.00
$3,699.00 - $3,699.00
$3,699.00
$3,329.00
$3,329.00 - $3,329.00
$3,329.00
Save $370.00 Save $0.00
Close-up shot of the outdoor unit of the MRCOOL DIY Ductless Mini Split Air Conditioner.
MRCOOL DIY Ductless Mini Split Air Conditioner - 5th Gen system showing both the indoor and outdoor units with connection pipes and accessories.
Deals on 2+ units
$4,299.00
$4,299.00 - $4,299.00
$4,299.00
$3,769.00
$3,769.00 - $3,769.00
$3,769.00

MRCOOL DIY 36K BTU 1 Zone Ductless Mini Split Air Conditioner - 5th Gen

MRCOOL

Heat and cool up to 1,500 sq ft with smart control, R-454B efficiency, and tool-free DIY install in just a few hours. Upgrade your home's climate c...

View full details
$4,299.00
$4,299.00 - $4,299.00
$4,299.00
$3,769.00
$3,769.00 - $3,769.00
$3,769.00
Save $530.00 Save $0.00
MRCOOL DIY 3-Zone 18K BTU Mini Split HVAC System with Triple 6K Air Handlers for Precision Climate Control Across Multiple Grow Zones
MrCool 3 Zone Ductless Heat Pump DIY 4th Gen Air Conditioners MrCool
$2,926.00 - $2,926.00
$2,926.00
$2,926.00 - $2,926.00
$2,926.00

MRCOOL 3 Zone 18K BTU (6K+6K+6K) 23.9 SEER2 Ductless Heat Pump DIY 5th Gen

MRCOOL

Compact and efficient comfort for three small zones with DIY setup, smart control, and ultra-high 24 SEER2 rating. The MRCOOL DIY Multi-Zone 27,000...

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$2,926.00 - $2,926.00
$2,926.00
$2,926.00 - $2,926.00
$2,926.00
Diagram of MRCOOL 5 DIY Multi-Zone System with BTU ratings totaling 36K.
MrCool 5 Zone 48K BTU (12K+9K+9K+9K+9K) Ductless Heat Pump DIY 4th Gen Air Conditioners MrCool
$5,135.00 - $5,135.00
$5,135.00
$5,135.00 - $5,135.00
$5,135.00

MRCOOL 5 Zone 36K BTU (6K+6K+6K+9K+12K) 23 SEER2 Ductless Heat Pump DIY 5th Gen

MRCOOL

Control five rooms independently with efficient zoning, quiet comfort, and an easy install that skips costly HVAC labor. The MRCOOL DIY Multi-Zone ...

View full details
$5,135.00 - $5,135.00
$5,135.00
$5,135.00 - $5,135.00
$5,135.00
Diagram of MRCOOL 5 DIY Multi-Zone System with BTU ratings totaling 55K.
MrCool 5 Zone 48K BTU (12K+9K+9K+9K+9K) Ductless Heat Pump DIY 4th Gen Air Conditioners MrCool
$6,875.00 - $6,875.00
$6,875.00
$6,875.00 - $6,875.00
$6,875.00

MRCOOL 5 Zone 55K BTU (6K+6K+9K+12K+18K) 22 SEER2 Ductless Heat Pump DIY 5th Gen

MRCOOL

Control five rooms independently with efficient zoning, quiet comfort, and an easy install that skips costly HVAC labor. The MRCOOL DIY Multi-Zone ...

View full details
$6,875.00 - $6,875.00
$6,875.00
$6,875.00 - $6,875.00
$6,875.00