Water Level Controller

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    Make RO Water production more convenient with Tunze's automated RO Water Controller!   The Tunze RO Water Controller 8555 is used to regulate the water level in your fresh water storage container. It uses two float switches to control an electronic valve. When the water level drops below the first…

    $199.99

    …AutoAqua's Smart Level Sensor will cut power to the outlet when the sensor detects a change in water level. The plug & play design requires no difficult programming and the magnetic attachment makes placement and adjustments of the level sensor quick and easy. The Smart Level can be used as either…

    $59.99

    …great for: General water level control applications Aquarium top-off applications Humidification/de-humidification applications Hydroponics project Water features Air conditioning drain pan applications   Don’t use in heavy duty applications like sewage pumps.   Great for water. Check your fluid's…

    $15.99

    water level drops and automatically refills your sump or tank until it reaches your desired set point. Each float sensor has been designed with an exterior guard preventing snails & hermit crabs from attaching to the sensors.   Electronic Controller Module Our state-of-the-art electronic controller

    $84.99

    …Hydrofill titanium ATO controller utilizes conductivity sensors making it a perfect auto top off controller for either fresh or saltwater aquariums. Hauling buckets, and daily refilling are now a thing of the past. Having an auto top off system monitor and control the water level in your aquarium…

    $69.99

    …to dry or dry to wet. This sensor can be used for constructing your own ATO (auto-top-off), as a high-level warning sensor in your sump, water storage level sensor, and much more. The sensors can be mounted on any type of reservoir that has up to 1/4" thick walls.  Compatible with Neptune FMM Module…

    $34.95

    …single sensor to monitor water levels and a controller that protects against overdosing. Magnetic holder for sensors up to 10mm or .39". Max Head Height: 7.0 ft   Introducing the little brother to the Tunze Osmolator, one of the industry’s most trusted automatic water top-off device and BRS…

    $99.99

    …Osmolator 3155 is one of the safest ATO’s available. It utilizes an electronic eye sensor to monitor water levels and a backup float switch sensor with an optional audible alarm. The controller protects the quiet metering pump from running dry and reports an empty storage tank. Two magnetic holders…

    $199.99

    …Secondary optical sensor Super precise water level control Super easy installation; plug-and-play No programming or adjustments required Works in complete darkness   Specifications: ATO DC Pump Max Head - 8.2 ft ATO DC Pump Flow Rate - 74 gph Controller Dimensions - 2.2" H x .88" W x 1.9" L Sensor…

    $119.99

    …and surface agitation Bubble Plate Design - reduces turbulence Maximum air flow capacity in compact design Micro-adjustable valve for precise water level control Twist-lock neck for easy collection cup removal Quality construction - CNC machined parts and Georg Fischer fittings Requires feed pump of…

    $1,299.99

    …to dry or dry to wet. This sensor can be used for constructing your own ATO (auto-top-off), as a high-level warning sensor in your sump, water storage level sensor, and much more. The sensors can be mounted into custom brackets or through a hole in a vessel. Included are a fastening nut and silicone…

    $24.95

    …proper control system! Fully automate your aquarium with the ApexEL Controller System, and while you are at it ensure your aquariums calcium, alkalinity, and magnesium levels are always perfectly stable with the Neptune Systems Trident! Ensuring that your aquariums calcium and alkalinity level stay…

    $1,099.90

    …Each box comes with a single vial that lets you collect a water sample from your tank and then mail it directly to them for ICP testing. Corals require elements be at certain concentrations in your water and measuring the levels of 40+ elements would cost hundreds of dollars if you purchased…

    Starting at:
    $29.99

    …for a high water level and another for a low water level. The high water level sensor acts as the ATO sensor, knowing when to refill your saltwater tank, from the freshwater reservoir. The top sensor also lets the AWC Touch controller know when to stop refilling the tank after a water change has…

    $209.99

    …more testing but also seems to put us in a never-ending state of adjusting our dosing levels. The Trident, when paired up with one or more of our DŌS systems solves this problem with Automatic Dosing Control (ADC) When configured on the Apex, ADC will take the results it receives from the Trident…

    $599.95

    Many cities and municipalities use chlorine or chloramines to treat the water supply. By testing for Free Chlorine and Total Chlorine, you can determine if chlorine and chloramines exist in your water. Hanna Test Kit Free Chlorine Manual Range: 0.00 to 2.50 ppm (mg/L) Chemical Method: DPD…

    $21.00

    …tanks calcium level with the Hanna HI758 Calcium Checker. Three simple steps to results. The Hanna Calcium Checker bridges the gap between simple chemical test kits and professional instrumentation. Accurate, affordable and easy to use. First, zero the instrument with your water sample. Next, add…

    $49.95

    …the alkalinity levels in your fresh water. The Hanna HI775 Checker HC Handheld Colorimeter for Alkalinity in fresh water bridges the gap between simple chemical test kits and professional instrumentation. Accurate, affordable and easy to use. First, zero the instrument with your water sample. Next,…

    $49.95

    …marine systems, including reef tanks. Excessive phosphate levels can prevent calcification, skeletal formation, and growth of many coral species, particularly those referred to as SPS or small-polyp stony. In addition, high phosphate levels can cause nuisance algae growth in your reef tank. This can…

    $49.95

    …can cause corrosion if levels are too high. The Hanna HI736 Checker HC Handheld Colorimeter for Phosphorus ULR bridges the gap between simple chemical test kits and professional instrumentation. Accurate, affordable and easy to use. First, zero the instrument with your water sample. Next, add the…

    $49.95

    …is full, or if your sump has reached a high or low water level.    Ideal Replacement Skimmer Pump for: Classic 110INT Classic 150INT SRO 1000INT SRO 2000INT REGAL 150INT REGAL 150SSS   Efficient - Safe - Reliable 5 Flow Settings - Precise control of pump air/water draw True Slow Startup - Easy on…

    $247.99

    …or if your sump has reached a high or low water level.    Ideal Replacement Skimmer Pump for: Classic-200INT SRO-2000EXT SRO-3000EXT SRO-3000INT Regal 200INT/200SSS/200EXT Elite 200INT/200SSS   Efficient - Safe - Reliable 5 Flow Settings - Precise control of pump air/water draw True Slow Startup -…

    $334.99

    water level.    Ideal Replacement Skimmer Pump for: Classic 250INT REGAL 220INT REGAL 220SSS REGAL 250EXT REGAL 250INT REGAL 250SSS REGAL 300EXT REGAL 300INT REGAL 300SSS SRO 5000INT SRO 5000EXT* SRO 6000EXT* *Additional Parts Required   Efficient - Safe - Reliable 5 Flow Settings - Precise control

    $372.99

    …surface agitation Bubble Plate Design - reduces turbulence Maximum air flow capacity in compact design Micro-adjustable valve for precise water level control Twist-lock neck for easy collection cup removal Quality construction - CNC machined parts and Georg Fischer fittings Internal application -…

    $749.99

    …and surface agitation Bubble Plate Design - reduces turbulence Maximum air flow capacity in compact design Micro-adjustable valve for precise water level control Twist-lock neck for easy collection cup removal Quality construction - CNC machined parts and Georg Fischer fittings Requires feed pump of…

    $494.99

    …and surface agitation Bubble Plate Design - reduces turbulence Maximum air flow capacity in compact design Micro-adjustable valve for precise water level control Twist-lock neck for easy collection cup removal Quality construction - CNC machined parts and Georg Fischer fittings Requires feed pump of…

    $384.99

    …and surface agitation Bubble Plate Design - reduces turbulence Maximum air flow capacity in compact design Micro-adjustable valve for precise water level control Twist-lock neck for easy collection cup removal Quality construction - CNC machined parts and Georg Fischer fittings Requires feed pump of…

    $529.99

    …and surface agitation Bubble Plate Design - reduces turbulence Maximum air flow capacity in compact design Micro-adjustable valve for precise water level control Twist-lock neck for easy collection cup removal Quality construction - CNC machined parts and Georg Fischer fittings Requires feed pump of…

    $849.99

    …surface agitation Bubble Plate Design - reduces turbulence Maximum air flow capacity in compact design Micro-adjustable valve for precise water level control Twist-lock neck for easy collection cup removal Quality construction - CNC machined parts and Georg Fischer fittings Internal application -…

    $494.99

    …plug-and-play installation Super precise water level control No programming or adjustments required Works in complete darkness   Specifications: Power Input: 120V AC, 60Hz DC Pump Max Head - 6.5 feet Flow Rate - 74GPH Max Mounting/Tank Thickness - 0.50" Controller Dimensions - 2.2" H x .88" W x 1.9"…

    $199.99

    …Kone Shape Body - reduces turbulence Bubble Plate Design - reduces turbulence Maximum air flow capacity Micro-adjustable valve for precise water level control Twist-lock neck for easy collection cup removal Quality construction - CNC machined parts Internal application - no feed pump required  …

    $384.99

    …Kone Shape Body - reduces turbulence Bubble Plate Design - reduces turbulence Maximum air flow capacity Micro-adjustable valve for precise water level control Twist-lock neck for easy collection cup removal Quality construction - CNC machined parts Internal application - no feed pump required  …

    $412.49