4hydro.com - Sunburst Hydroponics

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  • Sunleaves
  • Hydrofarm
  • Advanced Nutrients
  • Sunlight Supply
  • Hesi
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  • Botanicare
  • BioBizz

Newest Additions

To protect your plants from overheating, and potentially even fire, check out the Titan Controls Zephyr 2 - High Temperature Shut-Off with Delay.
?If you're looking for a digital timer to handle multiple appliances or units in your hydroponic system, lighting equipment, pump, or other large scale gardening operation, then you need the Blueprint BDT-2.
For a timer that can enforce any schedule you set, look no further than the Blueprint BDT-1.
$25.95 - $425.00
A pH stable, easy-to-use nutrient specifically formulated for the grow phase of your plants, Gro Terra contains a whole host of essential macro and micro elements necessary for exceptional plant development.
$25.95 - $425.00
Supernatural Bloom Terra contains essential minerals as well as all the trace elements necessary for a large, vigorous bloom phase, Bloom Terra is affordable, and pH stable.
$16.95 - $56.95
Organic Bountea SuperStart brings the nutrients your plant needs to grow and thrive.
Organic Bountea's Better Bloom is a natural, organic fertilizer to help boost your plants to their best bloom.
$20.95 - $56.50
Bountea Root Web is the prefect choice to protect your seeds, trees, and lawn from fungal disease.
$16.95 - $56.50
Bountea M3 uses nitrogen and other organic minerals to strengthen your plants and increase your plants growth.
$16.95 - $56.50
Bountea’s Fungal Activator delivers beneficial fungus to your woody-stemmed plants through compost tea.
$16.95 - $56.50
Bountea’s Bioactivator boosts beneficial bacteria and microorganisms to give your compost tea and extra boost.
$8.95 - $58.50
A combination of soluble seaweed extract and seven micronutrients, BioAg CytoPlus is an excellent source of beneficial organic compounds, including humic and fulvic acids.
$6.50 - $28.50
BioAg Ful-Humix is a water soluble humic powder and soil/nutrient activator. It increases nutrient efficiency and uptake, increases cellular activities at all levels.
$22.95 - $53.50
Xtreme Gardening Mykos WP (Wettable Powder) provides an effective Biological Inoculant that may be injected through a sprayer, applied in hydroponic reservoirs, and used as a seed or cloning treatment.
A fertilizer specially formulated to bring out the best in your Japanese maples and other low pH feeders, like lilies evergreens, hydrangeas, junipers, dogwoods, and flowering ornamentals.

Featured Products

Allium schoenoprasum
Espoma Cottonseed Meal is an organic plant food that feeds acid loving plants, generating faster growth and blooms.
$7.99 - $195.95
Advanced Nutrients Bud Candy was created by combining both Sweetleaf and Carbo Load into one powerful flavor and aroma enhancer that will also give you even bigger yields.
This fill and drain fitting with a 1/2-inch barbed hose attachment is the standard size within the hydroponics industry.
Earth Juice Double Up and Double Down are potent pH adjusters that can be used in hydroponics systems or with soil based gardens.
Model HI 98311: Hanna Instruments DIST 5 EC/TDS/temperature tester is waterproof. It even floats. Gauges temperature from 0.0 to 60.0 °C or 32.0 to 140.0 °F.
The Harvest More TrimBin is a pruning tray with a 150 micron stainless steel screen to collect pollen from your plants. It provides a perfect environment for the sifting and powdering of medicinal herbs. Use the TrimBin to process ingredients for use in creating healthy herbal remedies.
Agrosun T12 full spectrum fluorescent tubes are great for germinating seedlings, rooting plant cuttings and growing low-light plants such as African violets, orchids and other small sized houseplants.
This SA211 fittings replacement kit fits the 1/4 HP AquaChill Cooler model SA210.
Save 16%
The Quantum Series digital ballast lets you adjust power settings with the twist of a knob! You can run it on 120V or 240V simply by changing power cords, both of which are included. As with all digital ballasts you can burn both HPS and MH bulbs.
$0.40 - $1.10
Sturdy square pots are stackable to save space.
These dark green Premium Saucers are rugged enough for outdoor gardening but are great indoors to catch overflow when watering your plants.
Apply your foliar sprays or disease control liquids quickly and efficiently with this Commercial Portable Sprayer-Atomizer.
Save 14%
Get rid of fruit flies and other small pest flies very quickly and naturally with the BioCare Kitchen Fruit Fly Trap.
The Mi56P replaceable electrode is used with Martini pH55 and pH56 pH / temperature meters.
Save 16%
The ultimate additive addition to any grower's bloom regime, containing all the BLOOM additives required to enhance any garden.