Jiffy Pucks

A great alternative to germination in rockwool. High quality peat based Jiffy Pucks are inexpensive and provide an almost perfect medium for seed germination.

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ParGro Quick Drain Cubes 4″

Our Pargro line has been modified to be the driest value-priced Rockwool in the market. Pargro Quick Drain™ (QD) blocks are up to 14% drier than Cultilene® Comfort blocks. Pargro QD slabs are up to 10% drier than our previous Neptune slabs. Pargro is the leader among affordable horticultural Rockwool. There are other brands that […]

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ParGro Heated Seedling Mats

Re-engineered for better performance and greater durability! The new, stronger heating wire, and thicker multi-layer construction offer more uniform heating and the durability to withstand rugged greenhouse environments. Increases success of seedlings and cuttings Warms root area 10-20˚F over ambient temperature to improve germination Light, watering and planting information on mat Waterproof construction 6 foot […]

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Hydrotek Cruise Temp Temperature Controller

Hydrotek Cruise temp Temperature Controller. This thermostat has a gas filled coil for great reliability. Accuracy varies about 2 degrees. Turns fan ON when the temperature has reached 4 degrees above set point and turns fan OFF at 3 degrees below set point. Simply plug your fan into the thermostat’s cord, set the dial and […]

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General Hydroponics PH Test Kits

General Hydroponics pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator, and observe the coloration of the liquid in the test vial. Many experienced growers prefer our pH Test Kit to expensive electronic meters because of its reliability and ease of use, […]

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Hanna Illuminated Microscopes

Carry this 30X pocket microscope anywhere to use for educational field trips, industrial inspections, or enjoying closeups of rocks, flowers or insects you find on a hike. A built-in light provides illumination with two AA batteries (not included). The pocket microscope features a clear acrylic base, on/off switch and side focus wheel. Also included is […]

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Hanna Probes

Hanna probes for applications, such as air and liquid measurement and penetration of semisolids. (Facsimile Only)

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Hanna Tri Meter

Designed for continuous monitoring of pH, TDS and temperature the HI 981504 is simple to install and can be placed above the sample to be tested. pH, TDS and temperature measurements are simultaneously displayed on three backlit LCDs which can be easily viewed at a distance – even in low light. This means no more […]

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Hanna Champ PH Meter

Champ is a rugged pH meter with single point calibration and a battery life of over 1 year even if used for 1 hour everyday. The new design features a larger LCD so measurments are easier to read from any angle. Champ comes with a protective cap that can be used to hold storage solution […]

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Hanna Gro’CHEK pHEP 4 Meter

SKU: HI98127 Weight: 1.0 lbs. Package Dimensions: 8.2L x 2.7W x 1.3H Suggested Retail: $109.95 Dual-Level LCD Replaceable pH Electrode Catridge Automatic Calibration The pHep 4 includes features such as a dual-level LCD, battery level indicator, replaceable pH electrode cartridge, instability indicator, automatic shut-off and automatic calibration all in a floating, waterproof casing.

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