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Home » Environmental Controls » All Products
Product ID: FoilDucting
Foil Ducting - 25 feet

Flexible Foil Air Duct. 25 foot in length.

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Price: Select a Size
Product ID: DuctingAdapter
Ducting Adapter

Adapter for duct work.

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Price: Select a Size
Product ID: DuctingYAdapter
Ducting Y Adapter

"Y" Adapter for duct work.

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Price: Select a Size
Product ID: HoseClamp
Hose Clamp

Fastens aluminum / plastic ducting to the ducting adapters. 2 clamps per pack.

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Product ID: ScreenedWallVent
Screened Wall Vent
  • Quick and easy solution for bringing in fresh air or exhausting stale air.
  • Made of galvanized sheet metal.
  • Extended collar for easy duct connection.
  • Screened opening to help keep the pests out.
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Product ID: PhreshFilter
Manufacturer: Sunlight Supply
Phresh Filter

The Phresh Filter line is an industry classic filter with a whole new name. The Phresh Filter have many unique features including:

  • Aluminum tops and bases for reduced weight. Half the weight of competitive filters.
  • 46mm (1.8") RC-48 activated, certified virgin carbon bed.
  • Machine packed carbon means more carbon and less movement.
  • Cone shaped internal base for optimum air flow.
  • Sealed, bagged, boxed and labeled directly after being manufactured for optimum life span, handling and presentation.
  • 51% open air custom mesh.
  • Unique “Anti Air Bypass” System.
  • Large selection of sizes available to fit any application.
  • Flange & prefilter included.
MSRP: Select a Size
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Product ID: HY174
Manufacturer: Hanna
pHep4 pH Tester

Hanna ID: HI98127

Hanna pH hand-held meter 4 that measures pH as well as temperature. The meter automatically compensates for solution temperature for more accurate and quick readings.

pHep 4 pH Testers

  • Dual Level Display Showing pH & Temp.
  • Rugged, Floating Waterproof Casing
  • Replaceable pH Electrode Featuring an Extendable Junction

The waterproof pHep 4 pH testers have a dual-level LCD that displays pH and °C or °F. At startup, pHep performs a self check then displays the remaining battery level to assure proper working condition. These testers also feature a stability indicator and hold feature to prompt the user when to take the reading & freeze the display for easy and accurate recording. These pH/Temperature meters have a stainless steel temperature probe for faster and more precise temperature measurement and auto-compensation. 1 or 2 point calibration is made simple with automatic recognition of both standard and NIST buffer sets. We have designed the new pHep pH electrodes with an extendable reference junction and when the electrode finally is exhausted simply insert a new electrode cartridge!

HI 98127 (pHep4) is supplied complete with protective cap, electrode removal tool, batteries and instructions.

MSRP: $96.95
Price: $77.56
Product ID: HY1801
Manufacturer: Hanna
Replacement pH Probe for GroChek

Replacement Probe for Hanna Grow Check meter series. This will replace the pH electrode in all models of the Grow Check.

HI1286 PROBE FOR HI981401

MSRP: $54.95
Price: $43.96
Product ID: HY1771
Manufacturer: Hanna
HI1285-6 Replacement Probe

HI1285-6 Replacement Probe for NEW HI9813-6 (HY1743)

MSRP: $137.50
Price: $110.00
Product ID: HY180
Manufacturer: Hanna
GroChek TDS Meter

Hanna ID: HI983301N-01

Locate probe in your nutrient tank or reservoir for continuous TDS reading. A very handy device for the serious gardener.

MSRP: $101.95
Price: $81.56
Product ID: HY17411
Manufacturer: Hanna
ph Probe Electrode for HI98129 and HI98127

Hanna Replacement pH Probe for HI98129 EC/TDS/PH/TEMP, and HI98127 pH meters.

MSRP: $59.95
Price: $47.96
Product ID: HY1861
Manufacturer: Hanna
pH Checker 1

Liquid pH meter with digital readout.

Not temperature compensating but a very good value. We don't get many of these returned so we keep on selling them. Out-performs their more expensive models. Replaceable electrode.

MSRP: $39.95
Price: $31.96
Product ID: HY190
Manufacturer: Hanna
pH Checker 1 Replacement Probe

Replacement Electrode for Hanna model HY1861.

MSRP: $29.95
Price: $23.96
Product ID: HY1741
Manufacturer: Hanna
Hanna COMBO Tester

Hanna ID: HI98129

The HI98129 Combo tester from Hanna Instruments is designed for fast, efficient and high accuracy pH, EC/TDS and temperature measurements. No more switching meters to measure the pH and then the EC or TDS of a solution.

This tester has a hold feature to prompt the user when to take the reading & a display freeze for easy and accurate recording. Calibration and temperature compensation is automatic. The combo has a replaceable pH electrode cartridge and an EC/TDS graphite electrode, which resists contamination. The temperature probe is stainless steel, for faster and more precise measurement.

MSRP: $172.95
Price: $138.36
Product ID: HY177
Manufacturer: Hanna
Grocheck Combo Meter

Hanna ID: HI9813-6

pH/EC/TDS/Temp Meter with F.S.T. Technology

  • New Technology to Check the Status of the Electrode
  • Measures a Variety of Parameters with One Instrument
  • Fast Response Probe

HANNA instruments® developed new F.S.T. technology for the new HI 9813-6. With this special security system, if the meter encounters incorrect readings, the instrument doesn’t display values close to pH 7, but close to pH 4, making the problem clear. To allow maximum confidence in your measurements, the meter is equipped with two LEDs and a Check button. When pressing this button, after immersing the electrode in the proper solution, HI 50021P (Cal-Check solution), one of the LED’s will light up to indicate the status of the meter. The green LED (OK) indicates the probe is working correctly, while the red LED (C&C Clean & Cal) indicates the electrode needs attention.

HI 9813-6 is supplied complete with pH/EC/TDS/T HI 1285-6 probe with 1 m cable, pH 7, 1.41 mS/cm and 1500 ppm calibration solution (20 mL each), cleaning solution 2 pcs), HI 50021 test solution (2 pcs), blue protective case, battery and instructions.

MSRP: $234.95
Price: $187.96
Product ID: HY181
Manufacturer: Hanna
GroChek pH Meter

Hanna ID: HI 981401N-01

This meter provides a continuous digital pH reading. It is powered by a simple transformer. The electrode rests in your reservoir or nutrient tank and provides real-time pH monitoring. You can have a professional piece of equipment at consumer prices!

MSRP: $106.95
Price: $85.56
Product ID: MI211
Manufacturer: Rapitest
Rapitest pH Tester
  • Automatically measures pH - your soil's Acid & Alkaline level
  • Information included for how to test, balance and control soil pH levels
  • No chemicals/litmus paper. Meter detects tiny soil currents electronically
  • No batteries required.
MSRP: $23.95
Price: $19.16
Product ID: MI426
Manufacturer: Rapitest
Rapitest Soil pH Tester

Drop the contents of the capsule into the sample of water and soil. Match the color to the chart.

MSRP: $5.95
Price: $4.76
Product ID: MI210
Manufacturer: Rapitest
Rapitest Moisture Meter
MSRP: $17.95
Price: $14.36
Product ID: MI212
Manufacturer: Rapitest
Rapitest Moisture/Light Meter
MSRP: $22.95
Price: $18.36
Product ID: MI429
Manufacturer: Rapitest
Rapitest Soil Test Kit

4 Separate Tests (pH, Nitrogen, Phosphorus, Potassium)

MSRP: $17.99
Price: $14.39
Product ID: TI109
Manufacturer: Titan Controls
Apollo 9 - 120v Digital Timer

The Apollo 9 - digital dual outlet timer is a great solution for your timing requirements. It's easy to use and simple to operate. Just set the Apollo 9 for your specific timing needs and run up to two devices with exacting accuracy.

  • Runs lights, pumps, fans, CO2 generators, light movers, oznone generators, etc.
  • Two (2) outlets to run your gear (Do not exceed rated amperage)
  • One (1) minute intervals - 8 separate schedules per day
  • Battery back-up feature saves timer settings in case of power failure
  • Underwriter Labs (UL) listed in United States and Canada
  • Plastic enclosure resists dust and moisture
  • 15 Amps/120 Volts/60 Hz./1800 Watts
  • 1 year warranty

HINT: If the timer is not functioning properly, plug in for five (5) minutes and press the reset (R) button. This generally fixes any problem.

MSRP: $19.39
Price: $15.51
Product ID: TI108
Manufacturer: Titan Controls
Apollo10 240v Plug in Timer

The Apollo 10 - 240 Volt/ 24 hour programmable timer is the perfect timing solution for your hydroponic systems. With a 10 Amperage capacity, it's easy to set to run your lights, pumps, fans, etc. The Apollo 10 has 96 non-detachable 15 minute trippers and can be configured in numerous timing schedules. Flexible, dependable and easy to use!

  • One (1) outlet
  • 15 minute intervals
  • Red switch to change from TIMER to ALWAYS ON
  • Heavy duty construction
  • Easy to use and simple to operate
  • Plastic enclosure resists dust
  • Only the highest quality components are used
  • Runs lights, pumps, fans, etc.
  • 10 Amp/240 Volt/60Hz/2400 Watts
  • 1 year warranty
MSRP: $16.09
Price: $12.87
Product ID: TI110
Manufacturer: Titan Controls
Apollo 8 - Two Outlet Mechanical Timer

The Apollo® 8 - 24 hour timer is the perfect timing solution for your hydro systems. With two outlets and a 15 Amp capacity, it's easy to set to run your pumps, fans, etc. The Apollo® 8 has 96 non-detachable 15 minute trippers and can be configured in numerous timing schedules to meet the most demanding timing requirements. Two (2) outlets. 15 minute intervals. Heavy duty construction. Easy to use & simple to operate. Plastic enclosure resists dust, rust and moisture. Do not use with digital ballasts. 15 Amps maximum/120 Volts/60 Hz.

MSRP: $13.89
Price: $11.11
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