List Price: $154.00
Sale Price: $126.00
You save: $28.00 (18%)

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Description

No more switching between meters, the Combo Tester does it all!

Features

• Automatic calibration at one or two points with two sets of memorized buffer values for ease of use
• Replaceable electrodes to prolong life of meter
• Automatic temperature compensation (ATC) eliminates need for extra calculations
• Waterproof and floats in water
• Automatic shut-off to extend battery life

List Price: $233.95
Sale Price: $189.26
You save: $44.69 (19%)

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Description

The Nutradip Tri-Meter combines the technology of the pH and TDS meters and addresses an additional key factor in hydroponic growing the temperature. Temperature in a nutrient solution is often wrongly overlooked. The temperature variance in a growing operation can significantly restrict the growth and yield of the plant(s). With no effort at all reliable continuous reading of TDS pH and temperature can simultaneously be monitored and correct levels can easily and reliably be maintained.

Features

• Nutra-Dip Tri meter (pH, EC & Temperature)

List Price: $282.99
Sale Price: $234.44
You save: $48.55 (17%)

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Description

The Can Filters Original is designed for the control of VOCs (paint fumes, hydrocarbons, etc...), odors, and other gaseous contaminants. Built with a proven Packed Bed Design and Pelletized Virgin Activated Carbon. This line of time tested Activated Carbon Air Filters sets the standard for Long Life, Consistent Performance, and Low Pressure Drop. Rated at a conservative 0.1 sec Contact Time, Can-Filters Original provides excellent value and confidence.See additional image for filter specs. 

Features

• Proven packed-bed design
• Pelletized virgin activated carbon
• 2.56-inch carbon bed depth
• Long-lasting and consistent performance
• Low pressure drop

List Price: $22.99
Sale Price: $13.51
You save: $9.48 (41%)

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Description

Clonex Gel is a high performance rooting compound that remains in contact with the stem, sealing the cut tissue and supplying the hormones needed to promote root cell development and vitamins to protect the delicate new root tissue. Clonex has a full spectrum of mineral nutrients and trace elements to nourish the young roots.

Features

• Foremost rooting compound gel in its field since 1989
• Full spectrum of mineral nutrients and trace elements to nourish the young roots during the formative stages
• Remains in contact around the stem sealing the cut tissue
• Supplies hormones needed for root cell development
• Provides vitamins to protect the delicate new root tissue

List Price: $39.95
Sale Price: $27.89
You save: $12.06 (30%)

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Description

Hydrofarm MTPRTC Electronic Heat Mat Temperature ControllerHydrofarm MTPRTC Electronic Heat Mat Temperature Controller Features:; Electronic temperature controller for heat mats; Provides constant optimum temperatures for specific crops; Controls temperature in colder or warmer environments; Compatible with all heat mats; Optional for Hydrofarm Seedling Heat Mats; Illuminated indicator light; Three prong ground plug

Features

• Digital temperature controller for heat mats
• Provides constant optimum temperatures for specific crops
• Illuminated indicator light; 3-prong ground plug
• Compatible with all heat mats; optional for Hydrofarm Seedling Heat Mats
• Celsius or Fahrenheit read-out

Sale Price: $7.50

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Description

General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use our reference solutions widely among many popular brands of meters using the NaCl scale. General Hydroponics technicians check each batch to ensure that our solutions are exactly calibrated each time they are used.

Features

• Highest quality electronic meter reference solutions
• For meters using the NaCl scale
• Each batch is checked to ensure calibration

List Price: $61.95
Sale Price: $31.44
You save: $30.51 (49%)

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Description

These high-output super HPS lamps are specifically engineered for plant growth. Their spectrum and output rival lamps that are three times the price. Full color retail packaging. One year warranty.

Features

• 140,000 lumens!
• Works with Harvest Pro, SS10 and Galaxy 1000w ballasts.

List Price: $29.95
Sale Price: $23.99
You save: $5.96 (20%)

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Description

Cooling fan system for Sunburst™ Reflectors

Features

• Sunburst cooling fan system grow light accessory
• Fits all reflectors and ballasts with the 3-5/8-inch by 5-inch bolt hole pattern
• This product weight 5-pound
• Measures 7-3/4-inch length by 7-1/4-inch width by 7-3/4-inch height

List Price: $963.00
Sale Price: $867.00
You save: $96.00 (10%)

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Description

All the facilities of the 'Climate' and 'Pro' models, 8 standard outputs, plus a further 8 inputs & outputs to control advanced functions including automated alarms which can drive the optional 'Text Me' modem. Calls you with an alarm condition or greenhouse status (for example: "intruders", "overheating", "frost", "low water", or the greenhouse status: Time, Temp, Humidity, CO2 levels). Item Code HM10003 Item Code HM10008 (without CO2 sensor)

Features

• Harvest-Master Pro Plus Option Text Me Modem

Sale Price: $19.95

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Description

Poison-free pest control for outdoor and indoor applications. Controls gnats, black flies, midges, mites, aphids, thrips, whitefly, ants, mosquitoes and other pests. The liquid concentrate's general use rate is 1.7-2.6 fluid oz. per gallon of water. For hydroponic systems add directly to hydroponic reservoirs at 1-1.5 oz. per 10 gallons of solution. Add every 2 weeks or at nutrient solution change.

Features

• Liquid concentrate to control insect infestation
• Use indoor and outdoor
• Dilute and mix as a foliar spray
• Establish a pest free perimeter
• Developed for the conscious home gardener