Showing 441–460 of 2218 results
A favorite with cash croppers that want to supplement full spectrum lighting.
Supplies a 4 x 4 garden space (128 cf) with CO2 for SIX months guaranteed.
Automate CO2 gas levels with this easy to use and affordable analog device. A great value!
What sets the PPM-2a miles ahead of the competition? FUZZY LOGIC!
Includes a highly accurate remote probe and built-in photocell for dark cycles.
Automatically keeps CO2 PPM amounts perfectly balanced using stored data.
Includes a SenseAir® brand gas detector — the most accurate available!
Operate any 120V burner or valve with parts per million (PPM) accuracy.
Combines a precision regulator/ flow gauge and an industrial solenoid valve.
Features a programmable timer that automatically maintains ideal levels.
An inexpensive and easy to use alternative to costly electronic products.
Drilled tubing allows you to disperse CO2 evenly throughout your garden.
An inexpensive way to catch and reduce these disease-carrying scourges.
Beautiful crimson-red blossoms on compact, 12-inch tall, hardy plants.Free shipping
Contains high value minerals that are specifically tailored for cocos substrates.
Use to achieve the perfect balance between drainage and water retention.
Porous structure allows easy root penetration, yet keeps it shape when wetted up.
Soak compressed bale in water to expand. One 5-kilo bale makes up to 16 gallons.
Holds more than its weight in water — perfect for hanging baskets, containers and more!
Premium aged and composted for 24 months and contains a near perfect pH level.