Find your nearest store
866-710-GROW (4769)
Save More with Everyday Low Prices!
Wishlist
Shop
Grow Lights
LED Grow Lights
Grow Light Systems
Ceramic Metal Halide Grow Lights
LED Grow Lights
T5 Grow Lights
Mh & HPS Grow Lights
Grow Light Ballasts
All Wattages HID
CMH | LEC Ballasts
Grow Light Bulbs and Grow Lamps
LED Bulbs
CMH Bulbs
HPS Bulbs
Double Ended HID | DE
T5 Bulbs
MH & MH Conversion
Reflectors and Hoods
Air Cooled Hoods
Built-In Ballast Reflector
Non-Cooled Reflectors
Double Ended | DE Reflectors
Parts & Accessories
Controllers & Power Boxes
Cords & Adapters
Grow Light Stands
Grow Light Timers
Hangers & Movers
Sockets
Light Meters
Grow Tents
Grow Tent Kits
Complete Grow Tent Kits for Soil
Hydroponic Grow Kits
LED Grow Kits
CMH Grow Kits
Fluorescent Kits
HPS Grow Kits
Indoor Grow Tents
4X8
4X4
2X4
Grow Tent Accessories and Supplies
Commercial Tents
Grow Kit Combos
DIY Tent & Grow Room Materials
Reflective Mylar
Black & White Poly
Hydroponics
DIY Hydroponics
Hydroponic System Fittings and Connectors
Hydroponic Tubing
Drip Irrigation
Hydroponic Sprayers and Misters
Float Valves
Air Pumps and Air Stones
Water Pumps
Hydroponic Systems
Small Hydro Systems
NFT Hydroponics
Ebb & Flow | Flood & Drain
Deep Water Culture | DWC
Bucket Systems for Sale
Replacement Parts & Accessories
Hydroponic Containers
Reservoirs & Tanks
Flood Tables & Trays
Buckets
Hydroponic Net Pots
Water Quality Control
Reservoir Chillers & Heaters
Filtration Systems
Testing & Monitoring
Nutrients
Bulk Nutrients
Organic Nutrients
Worm Castings
Veganic
Bat & Bird Guanos
Beneficial Biology
Compost Tea
Meals
Base Nutrients
Organic Base Nutrients
3-Part
Starter Kits & Packages
2-Part
All-In-One
Indoor Garden Conditioners
Humic & Fulvic
Mycorrhizae & Beneficial Bacteria
Enzymes
Wetting Agents
pH Up & pH Down
Indoor Garden Enhancers
Bloom Boosters
Sweeteners
Flower Hardeners
Flushes
Organic Enhancers
Root Boosters
Indoor Garden Supplements
Calcium Magnesium
Amino Acids & Vitamins
Foliar Sprays
Seaweeds | Kelps
Silica
Organic Supplements
Soil & Grow Mediums
Coco Coir
Bags
Compressed Blocks | Bricks
Meal Fertilizers
Potting Soil & Soilless Mixes
Bulk Soil | Pallets
Organic
Super Soil
Soil Amendments
Soil Inoculants
Organic Compost Tea
Guanos
Azomite & Mineral
Organic Worm Castings
Biochar
Perlite and Vermiculite
Vermiculite
Perlite
Pots & Planting Containers
Air Pruning Pots
Plastic Root Pruning Pots
All Fabric Pots
Nursery Pots and Containers
Square Pots
Round Pots
Grow Bags
Poly | Plastic Grow Bags
Fabric Grow Bags
Fabric Grow Beds
Containers for Hydroponics
Reservoirs
Net Pots
Flood Tables
Buckets & Bucket Lids
Saucers and Trays
Rockwool Trays
Plant Saucers
Air | Water | CO2
Dehumidifiers
Circulation Fans & Wall Fans
Duct Silencers
Inline Fans & Duct Fans
Flanges & Dampers
Grow Room Air Conditioners
Grow Room CO2
CO2 Bags
CO2 & Atmosphere Control
Tanks & Regulators
Generators | Burners
Complete CO2 Kits
Air Sanitizer Systems and Ozone Generators
Air Filters & Odor Control
Odor Blocking Gels & Sprays
HEPA Filters & Dust Filters
Carbon Filter Systems
Carbon Air Filters
Fans and Ducting
Odor Control
Aromatic Odor Control
Gels & Sprays
Ozone Generators
Carbon Filter & Fan Combos
Carbon Filters
Odor Proof Storage
Storage Containers
Odor Proof Bags
Controllers & Meters
Meters | Testers | Monitors
pH Calibration Solutions for Sale
PPM | TDS | EC Meters
pH Meters & Testers
Timers
Grow Room Controllers
CO2
Fan Controllers
Grow Light Controllers & Power Boxes
Temperature & Humidity Controllers
Cloning & Seed Starting
Cloning
Kits & Complete Packages
Hydroponic Cloning Systems
Foam Clone Collars
Cloning Gels & Solutions
Plant Propagation Supplies
Trays
Starter Nutrients
Scalpels & Cutting
Heat Mats
Domes
Seed Starting Supplies
Seed Starting Trays
Seed Starter Plugs & Medium
Seed Starter Kits & Packages
Rockwool Seed Starters
Propagation Lights
4′ T5 Fluorescent
2′ T5 Fluorescent
Full Spectrum LED
Light Stands
Pest Control
Insecticides
White Flies
Multi-purpose
Insect Traps
Fungus Gnats
Aphids
Fungicides
Sprays
Fungicide Concentrate
Powdery Mildew Control
Spider Mites
Foggers
Mite Sprays
Organic Pest Control
Natural Insecticides
Natural Fungicides
Biological Controls
Traps & Non-Chemical
Trimmers & Buckers
Tools & Accessories
Supports & Ties
Trellis Netting
Plant Stakes & Cages
Clips & Ties
Reflective Films | Liners
Mylar Rolls
Black & White Poly Film
Safety & Sanitation
Sanitary Gloves & Supplies
Hydroponic Supplies: Cleaning Solutions
Lighting
Grow Room Glasses
Plant Care & Maintenance
Spray Bottles & Misters
Pruning Shears & Scissors
Plant Markers
Microscopes
Measuring Cups
Harvesting & Packaging
Drying Nets
Bud Trimmers & Trimming Machines
Containers & Humidity Packs
Plant Trimming Tools & Accessories
Extraction
Smell Proof Bags
Books
Apparel
Deals
Cheap Grow Lights
Clearance
Cheap Grow Tents
Refurbished
Cheap Hydroponic Nutrients
Shop All Deals
Commercial & B2B Services
Contact Commercial Services
Local Fulfilment Locations
FAQ's
Home Grow
Complete Grow Tent Kits
Grow Light Kits
Home Hydroponic Systems
Nutrient Starter Kits
Seeding Starter Kit
Odor Control Kits
Learn
Learn About Environmental Controls
Learn About Grow Lights
Learn About Grow Tents
Learn About Hydroponics
Learn About Nutrients
Learn About Plant Cloning
Learn About Propagation
Learn About Quick Crops
Learn About Soil
Ask The Doc
Instructions & Manuals
Talking Shop
HTG TV
Products search
My Account
0
Shop
Hydroponics
DIY Hydroponics
Hydroponic Systems
Hydroponic Containers
Water Quality Control
Indoor Grow Light Kits and Parts
Reflectors and Hoods
Grow Light Bulbs and Grow Lamps
Grow Light Ballasts
Grow Light Systems
Parts & Accessories
Climate Control Equipment
Fans and Ducting
Air Filters & Odor Control
Air Sanitizer Systems and Ozone Generators
Grow Room CO2
Dehumidifiers
Grow Room Air Conditioners
Water Treatment
Hydroponic Nutrients
Bulk Nutrients
Organic Nutrients
Base Nutrients
Tools & Accessories
Indoor Garden Grow Pots
Grow Room Odor Control
Grow Room Control Systems
Indoor Grow Mediums
Grow Tents
Pest Control
Plant Cloning Equipment
Wholesale Services
Commercial & B2B Services
Information Center
Retail Locations
Michigan
Mississippi
Pennsylvania
Oklahoma
New York
Maine
Virginia
Connecticut
Massachusetts
Illinois
Home
Therm-O-Rock
Therm-O-Rock
Filter
Products
Default sorting
Sort by popularity
Sort by average rating
Sort by latest
Sort by price: low to high
Sort by price: high to low
Filter
Clear Filters
In Stock
Yes
Product Category
Soil & Grow Mediums
Therm-O-Rock® Horticultural Vermiculite – 4 Cubic Feet
$
59.99
Add to Cart
0
Your Cart
Your cart is empty
Return to Shop
