□
Rockwool Blocks – Gro Indoor
Skip to content
support@groindoor.com
866-GRO-INDR
Search the store
Trending Now
Popular Products
Vendor:
Vendor
Example product title
$19.99
MSRP:
$19.99
Unit price
/
per
Vendor:
Vendor
Example product title
$19.99
MSRP:
$19.99
Unit price
/
per
Vendor:
Vendor
Example product title
$19.99
MSRP:
$19.99
Unit price
/
per
Trending Now
Popular Products
Vendor:
Vendor
Example product title
$19.99
MSRP:
$19.99
Unit price
/
per
Vendor:
Vendor
Example product title
$19.99
MSRP:
$19.99
Unit price
/
per
Vendor:
Vendor
Example product title
$19.99
MSRP:
$19.99
Unit price
/
per
Cart
0
0 items
Menu
Close
Grow Tent Kits
Grow Tent Kits
Go to Grow Tent Kits
LED Grow Tent Kits
CMH & LEC Grow Tent Kits
MH & HPS Grow Tent Kits
Fluorescent Grow Tent Kits
Multi-Chamber Tent Kits
Grow Cabinets
Grow Lights
Grow Lights
Go to Grow Lights
Led Grow Lights
Led Grow Lights
Go to Led Grow Lights
Full Spectrum LED Grow Lights
LED Light Panels
Veg Spectrum LED Grow Lights
Bloom Spectrum LED Grow Lights
UV Spectrum LED Grow Lights
LED Grow Light Panels
LED Grow Light Bars
LED Grow Light Bulbs
1000 Watt LED Grow Lights
900 Watt LED Grow Lights
800 Watt LED Grow Lights
700 Watt LED Grow Lights
600 Watt LED Grow Lights
500 Watt LED Grow Lights
400 Watt LED Grow Lights
300 Watt LED Grow Lights
200 Watt LED Grow Lights
100 Watt LED Grow Lights
Under 100 Watt LED Grow Lights
Ceramic Grow Lights
Ceramic Grow Lights
Go to Ceramic Grow Lights
315 Watt CMH Grow Lights
500 Watt CMH Grow Lights
630 Watt CMH Grow Lights
945 Watt CMH Grow Lights
1000 Watt CMH Grow Lights
MH & HPS Grow Lights
MH & HPS Grow Lights
Go to MH & HPS Grow Lights
Double Ended Grow Lights
Single Ended MH & HPS Grow Lights
HPS & MH Grow Light Kits
Commercial Grow Lights
Commercial Grow Lights
Go to Commercial Grow Lights
208-240 Volt Commercial Grow Lights
277 Volt Commercial Grow Lights
347 Volt Commercial Grow Lights
480 Volt Commercial Grow Lights
Fluorescent Grow Lights
Fluorescent Grow Lights
Go to Fluorescent Grow Lights
Fluorescent T5 Grow Lights
Compact Fluorescent (CFL) Grow Lights
Fluorescent Grow Light Parts & Accessories
Grow Light Bulbs
Grow Light Bulbs
Go to Grow Light Bulbs
HPS & MH Grow Light Bulbs
Ceramic Grow Light Bulbs
Fluorescent Grow Light Bulbs
Grow Light Ballasts
Grow Light Ballasts
Go to Grow Light Ballasts
MH & HPS Grow Light Ballasts
Ceramic Metal Halide Grow Light Ballasts
Fluorescent T5 Grow Light Ballasts
Grow Light Ballast Parts & Accessories
Grow Light Hoods & Reflectors
Grow Light Hoods & Reflectors
Go to Grow Light Hoods & Reflectors
HPS & MH Grow Light Reflectors
Ceramic Metal Halide (CMH) Grow Light Reflectors
Grow Light Reflector Parts & Accessories
Induction Grow Lights
Plasma Grow Lights
Grow Light Timers & Controllers
Grow Light Timers & Controllers
Go to Grow Light Timers & Controllers
Grow Light Timers
HID Grow Light Controllers
Grow Light Flip Boxes
Grow Light Timer & Controller Accessories
Grow Light Movers
Grow Light Hangers
Mylar & Reflective Wall Coverings
Mylar & Reflective Wall Coverings
Go to Mylar & Reflective Wall Coverings
Berry Plastics Black
Reflective Mylar Films
Reflective Poly Films
Reflective Film Accessories & Tape
Grow Light Power & Lamp Cords
Grow Light Power & Lamp Cords
Go to Grow Light Power & Lamp Cords
Grow Light Cords & Socket Sets
Grow Light Ballast Power Cords
Lamp Power Cords
Grow Light Extension Cords & Power Strips
Grow Light Cord Adapters
Electrical Receptacles
Miscellaneous Grow Light Cords
Grow Room Glasses & Eyewear
PAR Lumen & Light Meters
Hydroponics
Hydroponics
Go to Hydroponics
Complete Hydroponic Systems
Complete Hydroponic Systems
Go to Complete Hydroponic Systems
DWC Hydroponic Systems
Ebb and Flow Hydroponic Systems
Hydroponic Drip Systems
Aeroponic Systems
Aquaponics Systems
Nutrient Film Technique (NFT)
Hydroponic Micro Gardens
Hydroponic System Add On Kits & Accessories
Hydroponic Grow Trays & Stands
Hydroponic Grow Trays & Stands
Go to Hydroponic Grow Trays & Stands
Rolling Benches
Grow Trays & Flood Tables
Grow Tray Stands
Hydroponic Grow Tray Lids & Domes
Grow Tray Accessories
Hydroponic Reservoirs & Tanks
Hydroponic Reservoirs & Tanks
Go to Hydroponic Reservoirs & Tanks
10 Gallon Hydroponic Reservoirs
20 Gallon Hydroponic Reservoirs
30 Gallon Hydroponic Reservoirs
40 Gallon Hydroponic Reservoirs
50 Gallon Hydroponic Reservoirs
60 Gallon Hydroponic Reservoirs
200 Gallon Hydroponic Reservoirs
70 Gallon Hydroponic Reservoirs
100 Gallon Hydroponic Reservoirs
Commercial Hydroponics
Water Filtration & Treatment
Water Filtration & Treatment
Go to Water Filtration & Treatment
Reverse Osmosis RO Water Filters
Dechlorinators and Sediment Water Filters
Wastewater Treatment Systems
Electrolyzed Water Systems
Replacement H20 Filters Membranes & UV Sterilizers
Water Filter Upgrade Kits & Parts
Water Filter Booster Pumps
Water Conditioners & Solutions
Water Chillers & Heaters
Water Chillers & Heaters
Go to Water Chillers & Heaters
Hydroponic Water Chillers
Hydroponic Water Heaters
Hydroponic Water Chiller Fittings & Parts
Water Pumps
Water Pumps
Go to Water Pumps
Inline Water Pumps
Submersible Water Pumps
Sump Pumps
Water Pump Accessories
Hydroponic Grow Media
Hydroponic Grow Media
Go to Hydroponic Grow Media
Rockwool
Rockwool Hydroponic Growing Medium
Coco Coir Chips Blocks & Mats
Hydroponic Foam
Clay Pebbles & Growstones
Air Pumps & Air Stones
Air Pumps & Air Stones
Go to Air Pumps & Air Stones
Hydroponic Air Pumps
Hydroponic Air Stones & Air Diffusers
Air Manifolds & Dividers
Net Pots & Cups
Hydroponic Fittings & Tubing
Hydroponic Fittings & Tubing
Go to Hydroponic Fittings & Tubing
Tubing & Tube Accessories
Drippers Sprayers & Emitters
Connectors Fittings & Stoppers
Grommets Seals & Screens
Valves Regulators & Manifolds
Nutrients
Nutrients
Go to Nutrients
General Hydroponics FloraNectar
Nutrient Packages
Nutrient Packages
Go to Nutrient Packages
Soil & Soilless Nutrient Packages
Hydroponic Nutrient Packages
Organic Nutrient Packages
Soil Nutrients
Hydroponic Nutrients
Plant Supplements & Additives
Plant Supplements & Additives
Go to Plant Supplements & Additives
Cal-Mag
Silica
Mycorrhizae & Beneficial Bacteria
Root Stimulants & Enhancers
Micronutrients
Seabird & Bat Guano
Amino Acids & Vitamins
Bloom Boosters
Growth Enhancer
Fulvic & Humic Acids
Seaweed & Kelp
Fish Fertilizer
Enzymes
Sweeteners Sugars & Terpene Enhancers
Foliar Sprays
Flushing Agents
Single Ingredient Supplements
Organic Meals
Grow & Veg Nutrients
Flower & Bloom Nutrients
Organic Plant Nutrients
Synthetic Plant Nutrients
Compost Tea
Compost Tea
Go to Compost Tea
Compost Tea Brewers
Compost Tea Kits & Ingredients
Compost Tea Kits IngredientsNutrients
Pre-Brewed Compost Tea
Environment
Environment
Go to Environment
Dehumidifiers
Dehumidifiers
Go to Dehumidifiers
Commercial Dehumidifiers
Portable Dehumidifiers
Dehumidifier Filters & Parts
Environment Controllers
Environment Controllers
Go to Environment Controllers
Multi-Function Grow Room Controllers
Temperature Controllers
Humidity Controllers
Fan Speed Controllers
Recycling Timers
Grow Room Monitors
Environment Controller Parts & Accessories
Air Conditioners
Air Conditioners
Go to Air Conditioners
Mini-Split Air Conditioners
Portable Air Conditioners
Ceiling Mounted Air Conditioners
Commercial Grade Air Conditioners
Air Handlers
Air Conditioner Thermostats & Controllers
Air Conditioner Linesets, Parts & Accessories
Humidifiers
Grow Room CO2
Grow Room CO2
Go to Grow Room CO2
CO2 Controllers
CO2 Generators & Burners (LP & NG)
CO2 Tanks
CO2 Tank & Regulator Kits
CO2 Regulators
Natural CO2 Production
CO2 Parts & Accessories
Surface & Air Purifiers
Ventilation & Odor Control Kits
Ventilation & Odor Control Kits
Go to Ventilation & Odor Control Kits
Carbon Filter & Fan Exhaust Kits
HEPA Filter & Fan Intake Kits
Fans & Blowers
Fans & Blowers
Go to Fans & Blowers
Inline Duct Fans
Inline Fans
Clip-On Fans
Oscillating Fans
Wall Mount Fans
Floor & Pedestal Fans
Destratification Fans
Shutter Exhaust Fans
Axial & Booster Fans
Blower Fans & Air Movers
Carbon Filters & Odor Control
Carbon Filters & Odor Control
Go to Carbon Filters & Odor Control
Grow Room Exhaust Filters
Grow Room Intake Filters
Grow Room Ozone Generators
Odor Absorbing Gels Sprays & Mists
Ventilation & Duct Components
Ventilation & Duct Components
Go to Ventilation & Duct Components
Ducting
Connectors
Reducers
Backdraft Dampers
Duct Mufflers & Silencers
Flanges
Wall Vents
Clamps & Tape
Mounting Brackets & Hardware
Greenhouse Heaters
Propagation
Propagation
Go to Propagation
Cloning Machines
Cloning Machines
Go to Cloning Machines
Aeroponic Cloners
Hydroponic Bubble Cloners
Commercial Hydroponic Cloning Machines
Plant Cloning Kits
Cloning Collars & Inserts
Clone Machine Replacement Parts
Trays Domes Rooting Plugs & Kits
Trays Domes Rooting Plugs & Kits
Go to Trays Domes Rooting Plugs & Kits
Seedling Starter Kits
Seedling Trays
Humidity Domes
Seed Starter Plugs
Clone & Seedling Lights
Seedling Heat Mats
Cloning Gels & Rooting Solutions
Cloning Gels & Rooting Solutions
Go to Cloning Gels & Rooting Solutions
Clonex Root Stimulator Mist
Clonex Rooting Gel
Cloning & Rooting Gels
Cloning & Rooting Solutions
Rooting Powders
Rooting Sprays & Mists
Propagation Tools & Accessories
Grow Tents
Grow Tents
Go to Grow Tents
Grow Tent Sizes
Grow Tent Sizes
Go to Grow Tent Sizes
2x2 Grow Tents
2x3 Grow Tents
2x4 Grow Tents
3x3 Grow Tents
3x4 Grow Tents
3x5 Grow Tents
3x6 Grow Tents
3x9 Grow Tents
4x4 Grow Tents
4x5 Grow Tents
4x6 Grow Tents
4x8 Grow Tents
4x9 Grow Tents
5x5 Grow Tents
5x9 Grow Tents
5x10 Grow Tents
6x6 Grow Tents
6x9 Grow Tents
8x8 Grow Tents
8x16 Grow Tents
9x9 Grow Tents
10x10 Grow Tents
10x20 Grow Tents
Heavy Duty Grow Tent
Standard Duty Grow Tents
Heavy Duty Grow Tents
Multi-Chamber Grow Tents
Seedling & Cloning Grow Tents
Grow Tent Accessories
Garden care
Garden care
Go to Garden care
Drip Irrigation
Drip Irrigation
Go to Drip Irrigation
Distribution Tubing
Gauges & Meters
Pressure Regulators
Stakes & Risers
Soil Meters & pH Testing
Soil Meters & pH Testing
Go to Soil Meters & pH Testing
pH Meters & Test Kits
TDS PPM EC Meters
Combination Meters
Nutrient & pH Dosers
Soil Meters & Test Kits
Thermometers Hygrometers & Other Meters
Calibration & Cleaning Solutions
pH Adjusters
Replacement Probe Electrode & Testing Accessories
Insect & Disease Control
Insect & Disease Control
Go to Insect & Disease Control
Beneficial Insects
Insecticides & Pesticides
OMRI Listed Pesticides
Organic Pesticides & Insecticides
PyGanic Gardening
Fungicides
Neem Oil & Plant Washes
Insect Traps
Sulfur Burners & Evaporators
All Pest Control
Garden Hand Tools
Garden Hand Tools
Go to Garden Hand Tools
Pruners & Shears
Garden Hand Tools
Trellis Netting & Plant Support
Trellis Netting & Plant Support
Go to Trellis Netting & Plant Support
Garden Trellis
Scrog Nets
Plant Clips & Ties
Yo-Yo Plant Supporters
Plant Stakes
Plant Labels & Markers
Garden Sprayers & Foggers
Garden Sprayers & Foggers
Go to Garden Sprayers & Foggers
Electric Atomizer Sprayers
Electric Garden Sprayers
Manual Atomizer Sprayers
Sprayer Parts & Accessories
Greenhouse Supplies
Greenhouse Supplies
Go to Greenhouse Supplies
Greenhouse Kits
Greenhouse Plastic
Greenhouse Shade Cloth
Cleaners & Disinfectants
Worktables & Clean Room Carts
Garden Shelves & Security Cages
Garden Shelves & Security Cages
Go to Garden Shelves & Security Cages
Security Cabinets
Shelving & Racks
Add On Shelving & Parts
Grow Room Accessories
Grow Room Accessories
Go to Grow Room Accessories
Measuring Devices
Spigots & Spouts
Microscopes
Work Lights
Tarps & Covers
Grow Room Sanitary & PPE Gear
Outdoor Irrigation
Outdoor Irrigation
Go to Outdoor Irrigation
Outdoor Irrigation Timer
Watering Nozzles & Wands
Garden Hoses
Outdoor Irrigation Accessories
Garden Fencing
Soils & Containers
Soils & Containers
Go to Soils & Containers
Coco Coir Soil & Soilless Potting Mixes
Pots & Containers
Pots & Containers
Go to Pots & Containers
Plastic Pots
Fabric Pots
Air Pots
Peat Pots & Fiber Pots
Plastic Grow Bags
Saucers
Buckets & Lids
Plant Dollies
Pot Elevators
Garden Soil & Potting Mixes
Coco Coir & Soilless Mixes
Perlite
Garden Soil Amendments
Harvest
Harvest
Go to Harvest
Trimming Machines
Trimming Machines
Go to Trimming Machines
Dry Trimming Machines
Wet Trimming Machines
Commercial & Large Scale Trimming Machines
Medium and Small Scale Trimmers
Stand Up Trimming Machines
Bowl & Bag Trimmers
Hand Held Electric Trimming Machines
Trimmer Parts & Accessories
Bucking Machines & De-Stemmers
Bucking Machines & De-Stemmers
Go to Bucking Machines & De-Stemmers
Commercial Bucking Machines
Bucking Machine Parts & Accessories
Extraction Equipment
Extraction Equipment
Go to Extraction Equipment
Rosin Presses
Dry Sift Tumblers
Cold Water Extractions
Dry Ice Bubble Extractions
Extraction Presses & Moulds
Herbal Infusion Machines
Extraction Combo Packages
Distillation
Vacuum Purging
Recirculating Chillers & Heaters
Ultra Low Freezers
Ethanol Extraction
Pre-Roll Machines & Grinders
Pre-Roll Machines & Grinders
Go to Pre-Roll Machines & Grinders
Plant Shredders For Pre-Rolls & Extracts
Pre-Roll Cone Filling Systems
Trimming Scissors & Trim Trays
Trimming Scissors & Trim Trays
Go to Trimming Scissors & Trim Trays
Trim Bins & Trays
Trimming & Garden Scissors
Trimming Trays
Gloves
Scissor Cleaner
Scissor & Tool Sharpeners
Harvest Hand Trimming Kits
Freeze Dryers & Curing Machines
Drying Racks & Trays
Harvest Sorting Machines
Harvest Storage Supplies
Harvest Storage Supplies
Go to Harvest Storage Supplies
Storage Jars & Containers
Humidiccants
Vacuum Sealers & Bags
Smell Proof Bags
Storage Bags
Insulated Transportation Carriers
Stackable Freezing & Handling Trays
Harvesting Drying & Curing Kits
Plant Waste Shredders
Secure Transportation
Cart
0
0 items
Cart
0
0 items
Rockwool Blocks
Read more
Recently Viewed Products
GROINDOOR
Vendor:
Vendor
Example product title
$19.99
MSRP:
$19.99
Unit price
/
per
GROINDOOR
Vendor:
Vendor
Example product title
$19.99
MSRP:
$19.99
Unit price
/
per
GROINDOOR
Vendor:
Vendor
Example product title
$19.99
MSRP:
$19.99
Unit price
/
per
GROINDOOR
Vendor:
Vendor
Example product title
$19.99
MSRP:
$19.99
Unit price
/
per
GROINDOOR
Vendor:
Vendor
Example product title
$19.99
MSRP:
$19.99
Unit price
/
per
GROINDOOR
Vendor:
Vendor
Example product title
$19.99
MSRP:
$19.99
Unit price
/
per
GROINDOOR
Vendor:
Vendor
Example product title
$19.99
MSRP:
$19.99
Unit price
/
per
GROINDOOR
Vendor:
Vendor
Example product title
$19.99
MSRP:
$19.99
Unit price
/
per
GROINDOOR
Vendor:
Vendor
Example product title
$19.99
MSRP:
$19.99
Unit price
/
per
GROINDOOR
Vendor:
Vendor
Example product title
$19.99
MSRP:
$19.99
Unit price
/
per
Home
Search
Collection
user
Account
Cart
0
0 items
Choosing a selection results in a full page refresh.
Thanks for subscribing!
This email has been registered!
Shop the look
Close
Choose Options
Close
Social
Facebook
Facebook
Instagram
Instagram
Pinterest
Pinterest
Twitter
Twitter
Close
Edit Option
Close
Back In Stock Notification
Leave your email and we will notify as soon as the product / variant is back in stock
Subscribe
this is just a warning
Login
Close
Email Address
*
Password
*
Forgot your password?
Create account
Close
Shopping Cart
0
items
Close
Search
Search
Trending Now
Popular Products
Vendor:
Vendor
Example product title
$19.99
MSRP:
$19.99
Unit price
/
per
Vendor:
Vendor
Example product title
$19.99
MSRP:
$19.99
Unit price
/
per
Vendor:
Vendor
Example product title
$19.99
MSRP:
$19.99
Unit price
/
per
Trending Now
Popular Products
Vendor:
Vendor
Example product title
$19.99
MSRP:
$19.99
Unit price
/
per
Vendor:
Vendor
Example product title
$19.99
MSRP:
$19.99
Unit price
/
per
Vendor:
Vendor
Example product title
$19.99
MSRP:
$19.99
Unit price
/
per
Menu
Close
Sign In
Register
