Level Controller

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    Monitor and Control with Neptune Systems ApexEL The ApexEL is a great entry level controller but just like its big brother, an additional Energy Bar 832 is almost required for full control of your aquarium. The extra EB832 lets you control up to 16 total outlets while adding additional 1Link and 24V…

    $769.90

    …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

    …The magnetic reeds enclosed in liquid level sensors are extremely reliable and long-lasting when utilized properly. Failures are nearly always a result of current overloading. Pumps, solenoids and many other devices that require control by a liquid level sensor carry "steady state" current ratings.…

    $15.99

    …the wires completely out of water.   Recommended for water applications like level controllers, auto top off (ATO) systems or other aquarium uses.    Deluxe Madison Float Switch is great for: General water level control application Aquarium top-off applications Humidification/de-humidification…

    $20.99

    …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 float switch, the valve is…

    $199.99

    …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

    …crazed, or just plain dirty Skimz components with genuine Skimz replacement parts. Level controllers do not include gate, only include the knob and threaded rod. Skimz Replacement Level Knob Fitment Table Level Control Knob  Skimz Skimmer or Sump Model SKU TSL001 SM121 209423 TSL002 SM161 SM163…

    Starting at:
    $9.59

    …The magnetic reeds enclosed in liquid level sensors are extremely reliable and long-lasting when utilized properly. Failures are nearly always a result of current overloading. Pumps, solenoids and many other devices that require control by a liquid level sensor carry "steady state" current ratings.…

    $10.99

    …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

    …go to sensor if you want a reliable sensor over a long period. The Neptune Optical Sensor plugs directly into the FMM allowing you to monitor the level of your sump, mixing station, or any other reservoir with liquid in it.   This sensor plugs into your FMM and, using reflected infrared light, will…

    $24.95

    …damaged, crazed, or just plain dirty Skimz components with genuine Skimz replacement parts! Level controllers for In-Sump skimmers do not include adjustment knob, only the gate.   Skimz Level Controller Sizes  Your Skimmer  Skimz Model Number  BRS SKU SM121 TSB001 208771 SM161 or SM163 TSB002 208772…

    Starting at:
    $21.59

    The American Marine Pinpoint pH Controller will monitor and control pH levels in an aquarium. This pH controller controls pH in an upward and downward direction. With proper care, this Pinpoint pH Controller should last a lifetime.   Pinpoint pH Controller Features: Includes probe and calibration…

    $219.99

    The Milwaukee MC510 ORP Controller monitors and controls aquarium ORP levels. Milwaukee Instruments offers the most affordable pH and ORP aquarium equipment. The attractive price and high quality has made Milwaukee an increasingly popular choice for aquarists. Milwaukee Smart meters are manufactured…

    $144.99

    The Milwaukee MC125 pH/ORP Controller Combo monitors and controls both pH and ORP levels in the aquarium. Milwaukee Instruments offers the most affordable pH and ORP aquarium equipment. The attractive price and high quality has made Milwaukee an increasingly popular choice for aquarists.   Milwaukee…

    $221.99

    …sensor if you want a reliability over a long period of time. The Neptune Optical Sensor plugs directly into the FMM allowing you to monitor the level of your sump, mixing station, or any other reservoir that has up to 1/4" thick walls.   Includes Magnetic Mount   This sensor plugs into your FMM…

    $34.95

    …consistent results, we always have a Red Sea Algae Control test kit in our testing closet.  The Red Sea multi test kits are by far the best value for purchasing multiple test kits. Amazing Value. High quality and reliability. Monitor nutrient levels to prevent algae and promote healthy corals. This…

    $59.99

    Controller - Waterproof union   Control The safe and energy efficient VarioS DC pump now include the new VarioS controller giving you more control. With 5 different energy saving speeds and two feed modes, the controller lets you know what your pump is doing at a glance.   Third Party Control There…

    $247.99

    Controller - Waterproof union   Control The safe and energy efficient VarioS DC pump now include the new VarioS controller giving you more control. With 5 different energy saving speeds and two feed modes, the controller lets you know what your pump is doing at a glance.   Third Party Control There…

    $334.99

    Controller - Waterproof union   Control The safe and energy efficient VarioS DC pump now include the new VarioS controller giving you more control. With 5 different energy saving speeds and two feed modes, the controller lets you know what your pump is doing at a glance.   Third Party Control There…

    $372.99

    …pump. Control the pump through the included controller or connect it to your IOS or Android device for the utmost control.  WiFi Enabled Control System Includes 1" - 1 1/4" Barbed Fittings Includes 1" NPT Pipe Adapters Completely Silent 16.5 ft Max Head 5 Year Warranty   Controllable Smart Flow…

    $349.99

    …powered pump. Control the pump through the included controller or connect it to your IOS or Android device for the utmost control. WiFi Enabled Control System Includes 1" - 1 1/4" Barbed Fittings Includes 1" NPT Pipe Adapters Completely Silent 23 ft Max Head 5 Year Warranty   Controllable Smart Flow…

    $399.99

    …pump. Control the pump through the included controller or connect it to your IOS or Android device for the utmost control.  WiFi Enabled Control System Includes 1" - 1 1/4" Barbed Fittings Includes 1" NPT Pipe Adapters Completely Silent 11.5 ft Max Head 5 Year Warranty   Controllable Smart Flow…

    $289.18

    …Wave technology and simplified controls for a combination of features, reliability, and price that we believe adds up to true value.    The included four button controller means no extra apps to download, or bluetooth you have to connect to. The external controller can be mounted discreetly to your…

    $199.99

    …Wave technology and simplified controls for a combination of features, reliability, and price that we believe adds up to true value.    The included four button controller means no extra apps to download, or bluetooth you have to connect to. The external controller can be mounted discreetly to your…

    $219.99

    …Wave technology and simplified controls for a combination of features, reliability, and price that we believe adds up to true value.    The included four button controller means no extra apps to download, or bluetooth you have to connect to. The external controller can be mounted discreetly to your…

    $239.99

    …Wave technology and simplified controls for a combination of features, reliability, and price that we believe adds up to true value.    The included four button controller means no extra apps to download, or bluetooth you have to connect to. The external controller can be mounted discreetly to your…

    $259.99

    …- 17w @ 120v AC   Whats Included 1x SK184 Skimmer Body and Collection Cup 1x Sicce PSK1000 Needlewheel Pump 1x Air Silencer 1x Level Control Valve 1x Level Control Knob   Skimz Warranty Warranty for Original Purchaser against defective material and workmanship that occurs during normal use.…

    $384.99

    …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

    level controllers, auto top off (ATO) systems or other aquarium uses. The wires complete a circuit when the float is down. You can reverse the operation by removing the clip, turning the float upside down and replacing the clip.   Deluxe Madison Float Switch is great for: General water level control

    $16.49

    …with the updated QuietPro 2.0 controllable DC powered pump. With multiple power modes, you now have full control over the amount of water and air that are flowing into your skimmer. The updated pump has had the electronic control devices integrated into the controller instead of the motor block like…

    $274.99

    …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