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    Conductivity Monitor

    Conductivity Monitor

    The precise way to measure freshwater purity. Unit measures liquid conductivity within two ranges: 0-1999 S and 2,000-20,000 S (microSiemens). Accurate to +/- 1%. Comes complete with temperature compensated probe and 3' cord. 9 volt battery not included. more

    $149.99 $89.19

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    PetSolutions

    (25,000+)
    pH Monitor & Calibration Fluids pH Monitor

    pH Monitor & Calibration Fluids pH Monitor

    Digital pH display with accuracy of +/- .01. Built-in calibration and slope adjustment. Laboratory grade epoxy electrode and BNC connector. Fresh or saltwater use. Measures 3"x5" and powered by a 9 volt battery (not included). more

    $99.99

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    PetSolutions

    (25,000+)
    AutoAqua Smart ATO-Automatic Top Off System for Aquariums

    AutoAqua Smart ATO-Automatic Top Off System for Aquariums

    Automatic Top Off System with Controller & Sensor in One What is Smart AFS Technology? The Smart ATO is a unique Auto Top Off system with a patent pending contactless digital sensor that monitors and automates refilling evaporated water. Best of all it... more

    $149.99

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    Marina Aqua-Minder Programmable Digital Thermometer Multicolor - 11190

    Marina Aqua-Minder Programmable Digital Thermometer Multicolor - 11190

    Shop for Airstones and Bubblers from Hayneedle.com! Like a nanny for your aquarium, the Marina Aqua-Minder Programmable Digital Thermometer helps you keep it all in check. Monitor and keep your maintenance schedule even when your busy schedule makes it... more

    $50.99

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    RO/DI Replacement Filter Kit

    RO/DI Replacement Filter Kit

    Kit Includes: 1 x 1 micron dual density gradient sediment filter 1 x 5 micron carbon block prefilter 1 x Color Indicating Mixed Bed DI Cartridge Please note that these replacement cartridges are interchangeable with Captive Purity`s, Kent Marine`s, and... more

    $33.93 $28.84

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    NeoMag Aquarium Magnesium Media 1 000 grams

    NeoMag Aquarium Magnesium Media 1 000 grams

    Brightwell Aquatics NeoMag is a high purity magnesium media for placement in reef aquarium media reactors. It is composed of magnesium, calcium, and carbonates. This high-purity, magnesium-rich mineral may be employed in traditional calcium reactors,... more

    $12.89

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    PetSolutions

    (25,000+)
    Pondmaster Supreme Submersible Sterilizers Model 20

    Pondmaster Supreme Submersible Sterilizers Model 20

    This fully submersible unit controls water borne algae and helps prevent the spread of disease. The glowing monitor halo ring, visible from any angle, immediately shows its working. The unique vortex design increases water contact time for improved... more

    $164.99 $139.99

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    PetSolutions

    (25,000+)
    Brightwell Coralazarus High-purity Calcium Media 1000 Grams Live Coral Nano Reef

    Brightwell Coralazarus High-purity Calcium Media 1000 Grams Live Coral Nano Reef

    High Purity Calcium Media for Placement in Reef Aquarium Media Reactors Overview High-purity natural mineral that may be employed in traditional calcium reactors, or even blended in to pre-existing aquarium substratum, to gradually increase and... more

    $12.75

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    Lil' Alert Mates - Ruby Barb 1 Year Monitor LM

    Lil' Alert Mates - Ruby Barb 1 Year Monitor LM

    Let Ruby tell you when to change your water. Continuous ammonia detection more

    $9.67

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    Tunze USA 8533.000 RO TDS Monitor

    Tunze USA 8533.000 RO TDS Monitor

    RO TDS Monitor 8533 is ideal for monitoring the quality of the product water from an RO Station and can be used to indicate when the filters and membrane should be replaced, includes 1/4" T fittings and monitors both the input and output water. more

    $47.96

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    Alerts Combo Pack, 2 Monitors

    Alerts Combo Pack, 2 Monitors

    Alert Combo Pack combines Ammonia Alert and pH Alert into one convenient package more

    $13.22

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    Digital Lcd Tds3/temp/ppm Tds Filter Pen Water Purity Quality Tester Meter

    Digital Lcd Tds3/temp/ppm Tds Filter Pen Water Purity Quality Tester Meter

    Description:·100% brand new and high quality.·Quantity: 1sets ·This is a Digital TDS Meter Tester, For Test the Filter Water Quality Purity, Check the performance of your water filter, Check for hardness (1grain=17ppm), Make sure you always drink pure... more

    $14.50

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    Fauna Marin Ultra Balling Light Magnesium-Mix 1kg

    Fauna Marin Ultra Balling Light Magnesium-Mix 1kg

    High-purity chemicals The necessity of supplementing depleted minerals and micronutrients (trace elements) to reef tanks is due to enhanced growth rates of corals and marine algae in reef tanks, thus its importance is not to be underestimated. FAUNA... more

    $16.98 $14.43

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    Felce Azzurra Bianco Soft Purity Softener Talc Scented 2L 67.6oz

    Felce Azzurra Bianco Soft Purity Softener Talc Scented 2L 67.6oz

    Diluted 2L Talc Scented Universal softener for laundry Felce Azzurra - Suitable for hand and machine washing - Soften the tissues and give them a unique and lasting scent Felce Azzurra - Facilitate ironing both wet and dry clothes more

    $25.00

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    Rakuten.com Shopping

    (1,000,000+)
    Dm-2: Industrial Dual Tds Monitor

    Dm-2: Industrial Dual Tds Monitor

    Install on industrial systems such as car washes, window washing, manufacturing and food processing. UPGRADED APRIL 2012! The newly upgraded model features digital calibration, low battery indicator, imporved accuracy, longer battery life (2 years),... more

    $45.55

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    American Marine Pinpoint pH Monitor

    American Marine Pinpoint pH Monitor

    Test your aquarium pH quickly and accurately. No more test tubes or solutions to mess with. This Digital pH monitor can check your pH on a continuous basis or off-on. Easy to use and accurate to 1 one-hundredth of a pH unit. Includes enough calibration... more

    $139.99

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    Energy Saver WirelessPower Monitor iConserve for use in Home

    Energy Saver WirelessPower Monitor iConserve for use in Home

    People who buy iConserve enjoy savings of up to 15% on their electricity bills after installing this handy wireless energy monitor. iConserve displays both the instant energy and total energy consumed, as well as the cost and CO2 emissions. Only the... more

    $119.99

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    Rakuten.com Shopping

    (1,000,000+)
    Digital Ph Meter + TDS Tester Aquarium Water Quality Pool Hydroponic Monitor

    Digital Ph Meter + TDS Tester Aquarium Water Quality Pool Hydroponic Monitor

    Ensure you water is up to par with these two different water testing tools. Measure total dissolved solids and pH level in liquids with this handy bundle. more

    $39.99 $21.95

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    Rakuten.com Shopping

    (1,000,000+)
    Pinpoint Salinity Monitor

    Pinpoint Salinity Monitor

    You'll always know the exact salinity of your aquarium with the Pinpoint Salinity Monitor. Quickly and accurately measures the amount of salt in your saltwater aquarium and displays a digital reading. This monitor is temperature compensating and... more

    $168.99

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    HM Digital Calibration Fluid for Handheld TDS Meter - 3 oz.

    HM Digital Calibration Fluid for Handheld TDS Meter - 3 oz.

    NaCl calibration solution is designed for use with HM Digital's Handheld TDS Monitor. 342 ppm. more

    $11.09

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    Seachem Laboratories Sli Monitor Ammonia Alert

    Seachem Laboratories Sli Monitor Ammonia Alert

    Ammonia Alert more

    $7.50

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    Kmart

    (2,500+)
    Seachem Laboratories Sli Monitor Ph Alert Freshwater

    Seachem Laboratories Sli Monitor Ph Alert Freshwater

    PH Alert more

    $7.50

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    Kmart

    (2,500+)
    Captive Purity 35 GPD Deluxe RO/DI Filter System - Clear Canisters

    Captive Purity 35 GPD Deluxe RO/DI Filter System - Clear Canisters

    Captive Purity represents the highest quality in reverse osmosis technology. Captive Purity Reverse Osmosis Systems meet stringent standards and far exceeds the quality of systems from other manufacturers. A wide variety of options ranging from economy... more

    $160.49

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    PetStore.com

    (2,500+)
    Captive Purity Refractometer with Calibration Dial

    Captive Purity Refractometer with Calibration Dial

    The Captive Purity Refractometer is an incredibly accurate and easy to use device that eliminates the confusion associated with inexpensive hydrometers. Just place a couple of drops of water on the prism and hold to the light. Reads in percent and... more

    $69.99

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    PetStore.com

    (2,500+)
    Captive Purity Color Indicating Mixed Bed DI Cartridge

    Captive Purity Color Indicating Mixed Bed DI Cartridge

    If you want to achieve the highest possible purity water for your aquatic systems then you should try the Color Indicating Mixed Bed DI Cartridge from Pet Store. This replacement cartridge offers you a long lasting product and features maximum... more

    $22.99

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    PetStore.com

    (2,500+)
    API pH Test Kit

    API pH Test Kit

    API pH Test Kit can monitor pH from 6.0-7.6 in freshwater to help maintain healthy water conditions. All fish require a specific pH level to thrive. pH in an aquarium can fluctuate due to fish waste, addition of tap water, and the build-up of natural... more

    $3.69

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    PetGuys

    (25,000+)
    Coralife Coralife Marine Salt Mix: 150 Gallon Bucket #711 - Aquarium Salt

    Coralife Coralife Marine Salt Mix: 150 Gallon Bucket #711 - Aquarium Salt

    Coralife Coralife Marine Salt Mix: 150 Gallon Bucket #711 Coralife Marine Salt Mix contains ingredients of the highest quality with broad spectrum biological activity. Coralife Scientific Grade Marine Salt is unsurpassed in purity, quality and... more

    $61.99

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    API Ammonia Test Kit

    API Ammonia Test Kit

    API Ammonia Test Kit monitors ammonia levels from 0-8 ppm (mg/L) in freshwater or saltwater to prevent fish loss. Tropical fish continually release ammonia into the aquarium through their gills, urine, and solid waste. Uneaten food and decaying organic... more

    $7.39

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    PetGuys

    (25,000+)
    Ista Co2 Indicator - All Angle View

    Ista Co2 Indicator - All Angle View

    Gulfstream Tropical - Co2 Indicator - All Angle View. Allows you to monitor the CO2 level in your tank from any angle. Unique design prevents any chance of spilling the indicator solution. Reusable color chart sticker allows the constant repositioning... more

    $10.01

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    Captive Purity 35 GPD Deluxe RO/DI Filter System - Clear Canisters

    Captive Purity 35 GPD Deluxe RO/DI Filter System - Clear Canisters

    Captive Purity represents the highest quality in reverse osmosis technology. Captive Purity Reverse Osmosis Systems meet stringent standards and far exceeds the quality of systems from other manufacturers. A wide variety of options ranging from economy... more

    $160.49

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    MarineDepot.com

    (25,000+)
    Captive Purity Refractometer with Calibration Dial

    Captive Purity Refractometer with Calibration Dial

    The Captive Purity Refractometer is an incredibly accurate and easy to use device that eliminates the confusion associated with inexpensive hydrometers. Just place a couple of drops of water on the prism and hold to the light. Reads in percent and... more

    $59.99

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    MarineDepot.com

    (25,000+)
    Captive Purity Color Indicating Mixed Bed DI Cartridge

    Captive Purity Color Indicating Mixed Bed DI Cartridge

    Deionization cartridge - Color ChangePlease note that these replacement cartridges are interchangeable with Captive Purity`s, Kent Marine`s, and SpectraPure`s RO or RO/DI units. We have researched the best replacement cartridges among these three... more

    $22.99

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    MarineDepot.com

    (25,000+)
    "Triplett Plug-Bug 2 Electric Monitor"

    "Triplett Plug-Bug 2 Electric Monitor"

    " General Information Manufacturer Part Number 9610Model Plug-Bug 2Name Plug-Bug 2 Electric MonitorType Electric Monitoring Device Controls/Indicators Status Indicators Test in Progress LED Warranty Limited Warranty 1 Year " more

    $8.49

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    Seachem pH Alert - 6 Month Monitor

    Seachem pH Alert - 6 Month Monitor

    Seachem pH Alert - 6 Month Monitor pH Alert is a unique color device designed to be placed in the aquarium or filter and monitor pH continuously. A sensor changes color reversibly to alert you to shifts in pH levels between 5.8 and 8.2. No tests, no... more

    $6.35

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    Wag.com

    (1,000+)
    Seachem Ammonia Alert - 1 Year Monitor

    Seachem Ammonia Alert - 1 Year Monitor

    Seachem Ammonia Alert - 1 Year Monitor Ammonia Alert is an innovative color device for continuously detecting and monitoring toxic free ammonia. A sensor changes reversibly from yellow to green to blue, relative to the ammonia concentration. No test... more

    $11.99

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    Wag.com

    (1,000+)
    Hagen Fluval Fluval Vuetech E Series Heater: 300 Watt - 14 Long - (Up to 100 gallons) #XA774 - Aqua

    Hagen Fluval Fluval Vuetech E Series Heater: 300 Watt - 14 Long - (Up to 100 gallons) #XA774 - Aqua

    Hagen Fluval Fluval Vuetech E Series Heater: 300 Watt - 14 Long - (Up to 100 gallons) #XA774 Fluval Vuetech E Series Heaters use an advanced digital microprocessor to continuously monitor aquarium water temperature. An internal thermal sensor... more

    $55.99

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    API API pH Test & Adjuster Kit for Freshwater Aquariums: pH Test & Adjuster Kit - (250 Tests) #29A

    API API pH Test & Adjuster Kit for Freshwater Aquariums: pH Test & Adjuster Kit - (250 Tests) #29A

    API API pH Test & Adjuster Kit for Freshwater Aquariums: pH Test & Adjuster Kit - (250 Tests) #29A Aquarium Pharmaceuticals pH Test & Adjuster Kit monitors your aquarium water pH with extreme accuracy, and includes API pH UP and pH DOWN to perform... more

    $5.99

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    Lil' Alert Mates - Fred Snapper 1 Year Monitor LM

    Lil' Alert Mates - Fred Snapper 1 Year Monitor LM

    NA Lil' Alert Mates - Fred Snapper 1 Year Monitor LM more

    $4.46

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    Lil' Alert Mates - Barry Cuda 1 Year Monitor LM

    Lil' Alert Mates - Barry Cuda 1 Year Monitor LM

    Let Barry tell you when to change your water. Continuous ammonia detection. Peel off the protective plastic to reveal your Lil'Alert Mate's yellow sensor. Place your Lil'Alert Mate on the inside of your fish bowl or aquarium so they are peering out at... more

    $4.46

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    "Milwaukee pH Monitor MC110"

    "Milwaukee pH Monitor MC110"

    " Professional pH monitor User selectable Hi/Low Set Point Manual 2 points calibration Visual LED alarm Supplied with 12 VDC adapter, mounting kit, and 20ml pH 7.01 calibration solution Double junction pH electrode with 2m cable (BNC connector) " more

    $119.16

    FREE shipping

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