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Home » Environmental Controls » All Products
Product ID: FA1391
Flex Hose Connector

4" Tube Only (No Flange) Flex Hose Connectors used to make standard horizontal reflector air cooled.

Remove the louvered vent plates in our horizontal reflectors and place these tubes into the ends to channel air through them.

MSRP: $7.50
Price: $6.00
Product ID: BackdraftDamper
Backdraft Damper

The Eco Plus Backdraft Damper attaches to inline ventilation systems to keep exhausted air out for good. When used in conjunction with a fan and carbon filter, the Backdraft Damper also helps control odors as it prevents any untreated air from escaping the enclosed area. The directional damper installs downstream from the fan: when the fan turns on, the airflow opens the damper, and when the airflow stops, the damper closes.

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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.
MSRP: Select a Size
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Product ID: BugScreen
Bug Screen
  • Active carbon inserts proven to catch all bugs, mold and mildew.
  • Minimal air flow restriction.
  • Easily slips on and off inline fans.
  • Mildew and UV resistant.
MSRP: Select a Size
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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
Price: Select a Size
Product ID: PhreshPreFilter
Manufacturer: Sunlight Supply
Phresh Pre-Filter

Extend your filter life: To get the optimum product life from your Phresh Filter, it should be used with the provided pre-filter sock. This pre-filter sock catches the large dust particulates and foreign materials which if allowed to come in contact with the carbon will ultimately clog the outer surface of the carbon before total internal saturation has been achieved. When this happens it unnecessarily shortens the product life of the filter. It is recommended that the pre-filter be machine-washed or replaced every six months. Extremely dusty environments may require a more regular cleaning program. Ideally, maximum air temperatures should be kept below 95 F (35 C). Relative humidity should be kept below 75% at all times. Remember, carbon will absorb moisture and will take up "space" in the carbon particulate, reducing its life span.

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Product ID: OnaLiquid
Ona Liquid - 1 Quart

ONA Liquid is a versatile product and can be used in many different applications.

ONA Liquid can be added to commercial misting systems, humidifiers or simply sprayed freely into the air to neutralize airborne odors on contact. ONA Liquid is water based and can easily be diluted for safe and effective washing of odor saturated garments.

ONA Liquid can also be added to exhausted ONA Gel to reconstitute the gel. If this is done, we advise you to agitate the solution occasionally, as the ONA Liquid has a different formulation from the ONA Gel and may develop a film on the top. This film will prevent the optimal release of the active ONA ingredients.

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Price: Select a Size
Product ID: OnaGel
Ona Gel - 1 Quart

The ONA Gel is our most popular product. We spent many years developing a blend of ONA Liquid and various suspension elements to result in a product that has excellent dispersion qualities. The ONA odor neutralizing agents are released in a controlled manner so that every drop of this excellent product is fully optimized.

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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: HY1742
Manufacturer: Hanna
DiST 5 Waterproof Meter

Hanna ID: HI98311

TDS ( reads in PPM), EC and temperature meter tester. Waterproof and designed to float. Feels great in your hand. Very stylish and modern. Low battery indicator. A great buy.

MSRP: $127.95
Price: $95.96
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
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