Gear Up For A Bigger Grow.

Tents, lighting, irrigation, nutrients, environment control, and harvest equipment, all in one catalog.

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Start a small tent

Everything for a first grow in a 2x2, 4x4, or 5x5 tent.

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Design your facility

Lay out rooms, benches, lighting, irrigation and climate control in our facility builder, then send the plan to us for a quote.

Design your facility

Commercial build-out

Greenhouses, RO systems, trimming machines, and bulk consumables.

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All collections
Netafim 5in NetBow 4 Outlets w/ Barbed Connections & Foldable Legs (120pcs/Case)
Irrigation
GROW!T Commercial Coco Coir RapidRIZE Blocks X8, case of 20
Pots & Growing Media
Staal Plast Polystyrene Glue, 300 ml
Hydroponics
PHOTOBIO CX 2125 LED, 850W, 100-277V S4 (NO CORD)
Grow Lights
Anden A710V1 & A710V3 MERV 11 Replacement Filter
Ventilation & Climate Control
Dirt Defense 6mil Diamond Grip Nitrile Gloves XL (100pcs/Box)
Harvest
Bubble Magic 20 Gallon 220 Micron Washing Bag w/ Zipper (New SS Version)
Extraction
Trellis Netting 6″ Mesh, non-woven, 6′ x 3280′
Plant Support & Greenhouse
Disposable Scalpel, pack of 10
Propagation
Grow Tents
Grow Tents
Nutrients & Additives
Nutrients & Additives
Seabright Laboratories Aphid/Whitefly Traps, 5 pack
Grow Room Supplies
Futurola Super Shredder Super Mini + Sifter
Dispensary Supplies

Featured products

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House & Garden Roots Excelurator Gold, 1 LHouse & Garden Roots Excelurator Gold, 1 L
House & Garden House & Garden Roots Excelurator Gold, 1 L
$174.64
Save $1.09
Grow1 Fabric Pot Tan 5 Gallon
Grow1 Grow1 Fabric Pot Tan 5 Gallon
$2.04 $3.13
House & Garden Top Booster, 1 LHouse & Garden Top Booster, 1 L
House & Garden House & Garden Top Booster, 1 L
$22.42
Save $62.44
EZ-CLONE Low Pro 32 System White
EZ Clone EZ-CLONE Low Pro 32 System White
$207.55 $269.99
Save $47.50
Cultiwool 4" x 4" x 4" Block (144 Blocks/Case)Cultiwool 4" x 4" x 4" Block (144 Blocks/Case)
Cultiwool Cultiwool 4" x 4" x 4" Block (144 Blocks/Case)
$142.50 $190.00
Save $7.59
Root Royale Clay Pebbles 50LRoot Royale Clay Pebbles 50L
Root Royale Root Royale Clay Pebbles 50L
$21.86 $29.45
Save $926.58
Ideal-Air Pro Series Dehumidifier 60/120 Pints/DayIdeal-Air Pro Series Dehumidifier 60/120 Pints/Day
Ideal-Air Ideal-Air Pro Series Dehumidifier 60/120 Pints/Day
$298.75 $1,225.33
Save $74.00
Can-Lite Filter 10" 1500CFM
Can-Filters Can-Lite Filter 10" 1500CFM
$275.00 $349.00
Save $16.81
General Hydroponics FloraGro 1 Gallon
General Hydroponics General Hydroponics FloraGro 1 Gallon
$26.56 $43.37
Save $73.75
Secret Jardin Dark Room 120 v3.0 (4' x 4' x 6 2/3')Secret Jardin Dark Room 120 v3.0 (4' x 4' x 6 2/3')
Secret Jardin Secret Jardin Dark Room 120 v3.0 (4' x 4' x 6 2/3')
$221.25 $295.00
Save $600.00
CenturionPro Mini Hybrid Trimmer w/ Electropolished Tumbler (Dry/Wet)
CenturionPro CenturionPro Mini Hybrid Trimmer w/ Electropolished Tumbler (Dry/Wet)
$5,995.00 $6,595.00
FloraFlex 900W LED Light
FloraFlex FloraFlex 900W LED Light
$539.08
Save $324.20
GrowoniX 1000 Gallon/Day Reverse Osmosis FilterGrowoniX 1000 Gallon/Day Reverse Osmosis Filter
GrowoniX GrowoniX 1000 Gallon/Day Reverse Osmosis Filter
$874.80 $1,199.00

Grow room calculators and tools

Sixteen free calculators built for growers: size a dehumidifier or an inline fan, hit a VPD target, convert EC to PPM, work out reservoir volume and nutrient mixing, and estimate power cost and yield before you buy.

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Environment

VPD  |  BTU  |  Dehumidifier  |  Humidifier  |  Humidifier sizing  |  CO2

Irrigation and nutrients

Reservoir volume  |  Nutrient mixing  |  EC to PPM  |  Irrigation cycle  |  Pump and flow

Lighting and ventilation

PPFD  |  Ventilation and filter  |  Water chiller

Business

Electricity cost  |  Yield estimator  |  CEA ROI

Design your facility

Plan rooms, benches, lighting, irrigation and climate control in our facility builder, then send the layout to us for a quote.

Design your facility

Learning center

All guides

Dehumidifier sizing for grow rooms

Environment
Match pints per day to how much water your plants transpire, not to room size.

Drip irrigation or hand watering: which one for your room

Irrigation
Hand watering wins under about 20 plants. Past that, drip pays for itself fast.

How to size an inline fan for a grow tent

Ventilation
Start with the tent volume, add for filters and ducting, then pick the fan.

Irrigation

Drip, filters, regulators, tubing.

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Water filtration

RO and filtration systems for any GPD.

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Growing media

Fabric pots, coco, rockwool, perlite and clay pebbles.

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Greenhouses

Hoop houses and covers.

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Harvest

Trimmers, shears, drying, and storage.

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Nutrients and additives

Base nutrients, boosters, microbes, silica, cal-mag.

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Grow lights

LED, HPS, CMH, controllers and bulbs.

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Ventilation and odor control

Inline fans, carbon filters, ducting, climate control.

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Pest and disease control

Insecticides, fungicides, neem oil, traps.

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House and Garden nutrients

Roots Excelurator, Top Booster, Cocos, Soil and Aqua Flakes, Shooting Powder.

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New arrivals

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House & Garden Cocos A, 1 LHouse & Garden Cocos A, 1 L
House & Garden House & Garden Cocos A, 1 L
$12.48
Save $32.57
Aqua Master Tools P110 Pro Combo PenAqua Master Tools P110 Pro Combo Pen
Aqua Master Tools Aqua Master Tools P110 Pro Combo Pen
$72.38 $104.95
House & Garden Shooting Powder Sachet (5 sachets per box)
House & Garden House & Garden Shooting Powder Sachet (5 sachets per box)
$47.50
Save $28.11
Snoop's Premium Nutrients Grow A Coco 5ltr 3.2-0-0
Snoop's Premium Snoop's Premium Nutrients Grow A Coco 5ltr 3.2-0-0
$21.88 $49.99
Save $23.49
Green Gro Premium Ultrafine Mycorrhizae 1lb
Green Gro Biologicals Green Gro Premium Ultrafine Mycorrhizae 1lb
$46.13 $69.62
Save $63.75
True Terpenes Gelato Profile 4ozTrue Terpenes Gelato Profile 4oz
True Terpenes True Terpenes Gelato Profile 4oz
$536.25 $600.00
Save $26.32
Optic Foliar REV 1L
Optic Foliar Optic Foliar REV 1L
$35.63 $61.95
Save $5.19
Monterey 70% Neem Oil 1 Pint
Monterey Monterey 70% Neem Oil 1 Pint
$27.80 $32.99
Save $9.89
Botanicare Cal-Mag Plus 1 Quart
Botanicare Botanicare Cal-Mag Plus 1 Quart
$15.93 $25.82
Save $40.01
Optic Foliar TRANSPORT 1L
Optic Foliar Optic Foliar TRANSPORT 1L
$63.94 $103.95
Save $2.06
HYGROZYME Horticultural Enzyme Formula 1L
HYGROZYME HYGROZYME Horticultural Enzyme Formula 1L
$30.94 $33.00
Save $63.75
True Terpenes Blue Dream Profile 4ozTrue Terpenes Blue Dream Profile 4oz
True Terpenes True Terpenes Blue Dream Profile 4oz
$536.25 $600.00
Save $56.24
Boveda CVault Home Grow 2lbs
Boveda Boveda CVault Home Grow 2lbs
$93.75 $149.99
Save $14.86
General Hydroponics FloraNova Bloom 1 Quart
General Hydroponics General Hydroponics FloraNova Bloom 1 Quart
$24.08 $38.94

Brands we carry

Pay by card or ACH

Every order is invoiced through QuickBooks with a secure payment link. No card entry at checkout.

Two warehouses, live stock

Inventory shown is live from our Michigan and California distribution centers, so what you see is what ships.

Built for growers who buy in volume

MegaGrowMart supplies commercial cultivators, greenhouse operators, and serious home growers with the equipment and consumables they use every day, at wholesale pricing. Orders ship from Michigan or California depending on stock, and every account is invoiced through QuickBooks so your records stay clean.

Open a commercial account

Popular categories

Grow tentsLED grow lightsNutrientsDehumidifiersTrimming machinesReservoirsMeters and controllersLearning center

New products, stock alerts, and grow guides

A few emails a month when new brands land, high-demand items are back in stock, or a new guide is published.