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    Say goodbye to costly and time-consuming KH test kits! Alkalinity (KH) refers to the concentration of various negatively charged ionic compounds (such as carbonates, bicarbonates, borate and hydroxides) in aquarium water. Maintaining correct alkalinity levels in your aquarium is essential to keeping…

    $989.99 Regular Price: $

    …the Control unit, so if a motor or pump quits drawing current or draws too much, you will be immediately notified. Available Drive Port Accessories Auto Top-Off (ATO) pumps Cooling fans Cabinet LED lights Solenoids to control reverse osmosis systems Probe Port One of the most remarkable ports on the…

    $449.99 Regular Price: $

    …allowing you to plug in almost anything you want, where you want. Trident Cal, Alk, Mag Water Analyzer The Trident is an automated testing system that regularly tests alkalinity, calcium, and magnesium in your saltwater aquarium and then communicates this information to your Apex so you can get…

    $1,239.90 Regular Price: $

    …Control unit, so if a motor or pump quits drawing current or draws too much, you will be immediately notified. Available Drive Port Accessories Auto Top-Off (ATO) pumps Cooling fans Cabinet LED lights Solenoids to control reverse osmosis systems Command Bus The HYDROS Control 2 includes two Command…

    $199.99 Regular Price: $

    …Measures with a range up to 75.0ppm Easier to use and more accurate than chemical test kits Dedicated to a single parameter Simple one-button operation Large LCD digital read out for added convenience Auto shut-off to assure the battery wont be drained Compact size for easy travel and storage…

    $63.95 Regular Price: $

    …the Hanna Nitrite Checker, press the button and read the results. Done. Features Easier to use and more accurate than chemical test kits Large, easy to read digits Auto shut-off Dedicated to a single parameter Designed to work with HANNA's powder reagents Uses 10 mL glass cuvettes Small Size, Big…

    $63.95 Regular Price: $

    …reactor or drip system.By far the most common application for kalkwasser is by adding it to your tanks top offreservoirand then relying on the auto top off system to deliver small amounts of saturated kalkwasser solution throughout the day. We suggest using BRS Calcium Chloride, BRS Sodium…

    $19.99 Regular Price: $
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    Have your pH readings displayed through a large LCD window down to a resolution of 0.01 pH. Monitor your aquariums temperature and pH all with a single pen-style tester. Hanna's HI98108 Waterproof pHep+ Tester can give you pH readings from 0.00 all the way up to 14.0 pH making it perfect for…

    $58.00 Regular Price: $

    …and full top support brace Quiet water flow operation design Interchangeable floss filter box and filter sock holder Removable heater holder, test probe holder and dosing holes included Removable auto-top-off float valve holder Water level adjustable (5-12) in protein skimmer, refugium and…

    $549.99 Regular Price: $

    …and full top support brace Quiet water flow operation design Interchangeable floss filter box and filter sock holder Removable heater holder, test probe holder and dosing holes included Removable auto-top-off float valve holder Water level adjustable (5-12) in protein skimmer, refugium and…

    $299.99 Regular Price: $

    …and full top support brace Quiet water flow operation design Interchangeable floss filter box and filter sock holder Removable heater holder, test probe holder and dosing holes included Removable auto-top-off float valve holder Water level adjustable (5-12) in protein skimmer, refugium and…

    $449.99 Regular Price: $

    Xp Aqua's Sumpless ATO - Complete ATO & Surface Skimmer for Sumpless Aquariums Sumpless ATO is the first and only ATO designed specifically for aquariums without sumps. The combination of the sleek overflow box and the innovative dual-optical sensor ATO will help to keep your aquarium topped off and…

    $149.99 Regular Price: $

    The Auto Aqua Smart Stir makes testing with liquid reagents a fast and effortless process. Just drop the magnetic stirring bar in the testing vial, put it on the stir base, and press the power button. Forget about tediously adding a drop of reagent and then swishing the vial by hand, struggling to…

    $32.99 Regular Price: $

    …way to measure phosphate from 0.00 to 0.90 ppm in a few easy steps. Features Easier to use and more accurate than chemical test kits Large, easy to read digits Auto shut-off Dedicated to a single parameter Designed to work with HANNA's reagents Uses 10 mL glass cuvettes Small Size, Big Convenience…

    $63.95 Regular Price: $

    …corals. Designed as a more accurate alternative to chemical test kits, the HI780 marine pH meter provides quick, accurate results in a few easy steps. Features Easier to use and more accurate than chemical test kits Large, easy to read digits Auto shut-off Dedicated to a single parameter Designed to…

    $63.95 Regular Price: $

    …Hanna Phosphorus Checker, press the button and read the results. Done. Features Easier to use and more accurate than chemical test kits Large, easy to read digits Auto shut-off Dedicated to a single parameter Designed to work with HANNA's reagents Uses 10 mL glass cuvettes Small Size, Big…

    $63.95 Regular Price: $

    …the Hanna Nitrite LR Checker, press the button and read the results. Done. Features Easier to use and more accurate than chemical test kits Large, easy to read digits Auto shut-off Dedicated to a single parameter Designed to work with HANNA's powder reagents Uses 10 mL glass cuvettes Small Size, Big…

    $63.95 Regular Price: $

    …Alkalinity Fresh Water Checker, press the button and read the results. Done. Features Easier to use and more accurate than chemical test kits Large, easy to read digits Auto shut-off Dedicated to a single parameter Designed to work with HANNA's reagents Uses 10 mL glass cuvettes Small Size, Big…

    $63.95 Regular Price: $

    …as an independent auto-top-off. This mechanical float switch is designed to be mounted vertically. Compatible with Profilux & Doser 2.1 systems Auto Top Off with one or two Sensors Automatic Water Changes Leakage detection GHL electrodes are built to the highest laboratory-grade specifications.…

    $41.90 Regular Price: $

    …them a reliable alternative to mechanical switches. Optical sensors are very versatile and great for a variety of water-monitoring applications. Auto Top Off with one or two Sensors Automatic Water Changes Leakage detection GHL electrodes are built to the highest laboratory-grade specifications.…

    $89.90 Regular Price: $

    …easy way to connect up to six external switch inputs. The breakout box is compatible with any Apex Controller. Float Switches for sump alerts or ATO (Auto Top Off) Push Buttons for special feed, cleaning, ect. modes Leak Detectors Magnetic switches on cabinets for intrusion detection Customize your…

    $44.95 Regular Price: $

    …applications Easier to use and more accurate than other chemical test kits Color-coded syringes for simple and effortless testing Dedicated to a single parameter Simple one-button operation Large LCD digital read out for added convenience Auto shut-off to assure the battery wont be drained Compact…

    $63.95 Regular Price: $
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    …the results. Done. Easier to use and more accurate than chemical test kits Adaptation of Standard Method 4500-P E Accuracy 4% ±0.04 ppm (mg/L) of reading 0.04 ppm (mg/L) resolution (250 points) Large, easy to read digits Auto shut-off. Dedicated to a single parameter Designed to work with…

    $63.95 Regular Price: $

    …and aquaculture applications Easier to use and more accurate than other chemical test kits Dedicated to a single parameter Simple one-button operation Large LCD digital read out for added convenience Auto shut-off to assure the battery wont be drained Compact size for easy travel and storage…

    $63.95 Regular Price: $

    …color change test kits, the digital readout on the Hanna checkers is super easy to read. The biggest key with Hanna checkers is keeping the vials nice and clean for consistent results. Three simple steps to results. The Hanna Phosphate Checker bridges the gap between simple chemical test kits and…

    $63.95 Regular Price: $

    …LCD Display Reliable, Repeatable results Auto Off feature turns off after 10 minutes Works with fresh or saltwater 9v battery included Replacement MI412Reagents - Milwaukee MI512 Reagents for MI412 Low Range Phosphate Photometer A good, reliable phosphate test kit should be accessible to any serious…

    $190.00 Regular Price: $

    …Chlorine Colorimeter to help determine chloramines in your water. Easier to use and more accurate than chemical test kits. The HI 711 from Hanna Instruments uses EPA approved DPD method. Auto shut off after 10 minutes of non-use. Dedicated to a single parameter Two sample cuvettes and caps. Six…

    $63.95 Regular Price: $

    …and more accurate than chemical test kits.The HI 700 from Hanna Instruments uses an adaptation of the ASTM Manual of Water and Environmental Technology, D1426-92, Nessler method. The reaction between ammonia and reagents causes a yellow tint in the sample. Auto shut off after 10 minutes of non-use.…

    $63.95 Regular Price: $

    …results. Done. Easier to use and more accurate than chemical test kits. The HI 761 from Hanna Instruments uses an adaptation of the USEPA method 330.5. The reaction between the chlorine and DPD reagent causes a pink tint in the sample. Auto shut off after 10 minutes of non-use. Dedicated to a single…

    $63.95 Regular Price: $

    …shut itself off and give you an alert. Peace of mind No Moving Parts Plug & Play Magnetic Attachment Preset Safe Temps Easy to Clean Sensor Auto Time Delay Specifications: Temperature Range - 72°F to 84°F Power Input/Output - 110V AC @ 10 amps Max Power - 1100W for 110VAC Max Mounting…

    $53.99 Regular Price: $59.99

    …iPhone or Android smartphone. By changing the color of the filter you can trick your phone to not overcompensate for it, especially if you use the auto mode on the camera. Depending on your light source, you will want to use the 15K filter for the day-time shots, and the 20K filter under deep-blue…

    $34.99 Regular Price: $

    …screen but the PMUP will also now automatically shut off when it detects that it is running dry, but also over temperature protection. Perfect for: Auto Top Off Carbon Reactors GFO Reactors BioPellet Reactors Ideal for Salt or Freshwater Auto-Top-Off (ATO) ATO will likely be the most popular use for…

    $44.95 Regular Price: $
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