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    …or hard wood floors. For the value, and reliability it is hard to beat. Max Head Height: 7.2 ft The Tunze 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…

    $214.99 Regular Price: $

    …dual-sensor ATO Two layers overfill protectionIntelligent QST programming 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…

    $119.99 Regular Price: $

    …are no additional controllers to mount giving a clean and easy to install system. The Exo Mounts easily to clear sump and aquarium walls with internal magnets that securely hold up to 1/4" thick. The Reef Breeders Exo ATO system is an ultra-intelligent and compact bundle at an affordable price sure…

    $99.99 Regular Price: $

    The Tunze Osmolator Nano 3152 Auto Top Off is designed for smaller tanks, approximately 50 gallons and under. One of the safest ATO’s available. Utilizes a single sensor to monitor water levels and a controller that protects against overdosing. Magnetic holder for sensors up to 10mm or .39".…

    $109.99 Regular Price: $
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    The HYDROS ATO Kit comes with everything you need to add and manage automatic top-off through your HYDROS Controller. Using a HYDROS aquarium controller for your auto top-off system is not only a reliable solution but it also helps clear wire clutter in and around your aquarium. HYDROS Water Level…

    $79.99 Regular Price: $

    Enjoy a precise water level and peace of mind with the JBJ Dual Sensor auto top off system. With the included sensor cover you never have to worry about tank inhabitants causing false readings again, as an added bonus this cover will prevent sudden surface agitation from causing fluctuating water…

    $109.00 Regular Price: $

    A Complete, Simple, & Standalone ATO! If you want a safe ATO system, the Neptune System ATK v2 uses a mixture of optical eyes and a float valve to ensure your tanks water level stays the same while preventing overfills. With the ATK v2 you do not need an Apex Controller since it can be run 100%…

    $199.95 Regular Price: $

    Why does BRS recommend this? One of the most popular ATO systems available. The JBJ A.T.O system is by far the mostcost-effectiveway of utilizing a safe and consistent auto top off system. With multiple configurations, the JBJ A.T.O will fit almost anyone’s needs. With linkable brackets adjust…

    $92.00 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: $

    Build Your Own Auto Top Off System for your aquarium. Perfect for the DIY reefer who likes fun projects and wants to save a few dollars. Assembly requires only basic tools and no soldering. Basic knowledge of electrical wiring required. Aquahub DIY Top-it-Off Kit Premium Kit includes: (2) Aquahub…

    $45.99 Regular Price: $

    …choice. Features: Extremely compact & quiet High efficiency Streamfilter Propeller Pump Versatile media chamber Compatible with Osmolator 3155 ATO Surface skimming overflow Built-in probe chamber Patented magnetic mount The 3163 utilizes the Streamfilter 3163 propeller pump to deliver added…

    $96.49 Regular Price: $

    The Tunze Switched Socket Outlet connects any brand of pump to the Osmolator Universal 3155 Auto-Top off system. The enclosed low-voltage centrifugal pump can be replaced by this switched socket outlet in combination with a more powerful pump. The switched socket outlet can be used to switch…

    $75.99 Regular Price: $

    …Kit for RO/DI Systems XP Aqua RO/DI Flood Guardian is the perfect solution for any reefer that wants a float valve that they do not need to drill or permanently mount to a reservoir. The Flood Guardian uses a dual optical sensor that can be magnetically attached to 5-gallon buckets, ATO containers,…

    $69.99 Regular Price: $

    …a RODI system directly up to an aquarium can be a very simple, and reliable method for replenishing evaporated water there are inherent dangers that come with a direct connection to an endless water supply to your tank. By utilizing a solenoid in conjunction with the Smart ATO systems, you can…

    $22.99 Regular Price: $

    …Place your ATO systems pump or intake line is place 1/2" to 1" above the base of your reservoir, ensuring only the clear slurry is being dosed. Step 5. Activate your ATO and monitor the pH of your aquariumas the kalkwasser solution is being dosed, not exceeding increases of 0.20 pH. Your ATO should…

    $17.49 Regular Price: $
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    …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 HYDROS Control 4 is the Probe Port. The Control 4…

    $449.99 Regular Price: $

    …connection between the fittings is disconnected. This is super handy for reactors, ATO containers, saltwater mixing systems, and other filtration equipment. We do not recommend Anti-Drip fittings with water export systems due to the increased chance of particles like sand or shells becoming lodged…

    $13.99 Regular Price: $
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    …back siphon. 24-month warranty offered by Bulk Reef Supply. BRS Top Off Doser Specs 20 ft max head 50mL/min flow rate is ideal for most top off systems Will not back siphon Precision two roller design extends pump life Dimensions: 4" x 3.25" x 4.5" 12-month tube life (at 4 hours of use per day)…

    $79.99 Regular Price: $
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    …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 Bus ports which are used to power the Control unit…

    $199.99 Regular Price: $

    …We do not suggest using this pump for auto top off systems. Due to the slow flow rate and the motor's long duty-cycle, it is best suited for intermittent use and we highly suggest using a pump with a faster flow rate for an Auto Top Off System. What's Included? 1x Drew's Doser v2.0 10ft Dosing…

    $109.99 Regular Price: $

    …low-level sensor as part of a dual-sensor automatic top-off (ATO) system. You could place these tiny optical sensors inside your dosing containers so you could be alerted when they need to be refilled. You could place a couple in an ATO reservoir: one can tell HYDROS to refill it and the other could…

    $39.99 Regular Price: $

    Why does BRS recommend this? Trigger Systems has been making sumps for quite some time now and they have won us over with their attention to detail, practical designs and overall aesthetic appeal. With the ability to modify the sump to your needs with adjustable water levels, interchangeable plates,…

    $470.99 Regular Price: $

    …automatic top up system System Volumes Display tank water volume (L) 502 (133 gal) 602 (160 gal) In cabinet sump water volume (L) 123 (32 gal) 150 (40 gal) Total system water volume (L) 625 (165 gal) 750 (200gal) RO reservoir volume (L) 28.5(7.5 gal) 28.5(7.5 gal) System Dimensions Display…

    $3,399.00 Regular Price: $
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    …2000 pump Warranty: 1 year What's Included? Octo LUX T90 Aquarium Octo LUX Cabinet Stand Integrated Slim Overflow System Auto UP Reservoir Reef Octopus PVC Sump with Filter Sock ATO Float Valve AQ-3000 Return Pump Reef Octopus Classic 150INT Protein Skimmer Warranty 1 year for tank and cabinet 2…

    $1,890.00 Regular Price: $

    …to help keep dust and debris out. The Trigger Systems ATO containers have a removable lid to prevent excess evaporation, while providing a large opening to refill the reservoir as needed. Each ATO reservoir has two 0.25” OD holes for ato plumbing or wires for float switches. Dimensions:…

    $189.99 Regular Price: $

    …connection between the fittings is disconnected. This is super handy for reactors, ATO containers, saltwater mixing systems, and other filtration equipment. We do not recommend Anti-Drip fittings with water export systems due to the increased chance of particles like sand or shells becoming lodged…

    $12.99 Regular Price: $
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    Ruby ATO reservoirs feature crystal clear acrylic with an elegant emerald top, to hold top off water for your aquarium in a closed container. The Trigger Systems ATO containers have a removable lid to prevent excess evaporation, while providing a large opening to refill and clean the reservoir as…

    $182.99 Regular Price: $

    …The Trigger Systems ATO containers have a removable lid to prevent excess evaporation while providing a large opening to refill and clean the reservoir as needed. Each ATO reservoir has two 0.25” OD holes for tubing or wires for float switches. The Sapphire, Ruby, and Emerald line of ATO

    $129.99 Regular Price: $

    …Place your ATO systems pump or intake line is place 1/2" to 1" above the base of your reservoir, ensuring only the clear slurry is being dosed. Step 5. Activate your ATO and monitor the pH of your aquariumas the kalkwasser solution is being dosed, not exceeding increases of 0.20 pH. Your ATO should…

    $38.99 Regular Price: $
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    Simple & Smart Dosing The GHL 2.1 Dosing System could be one of the easiest dosing systems to set up and run. Not to mention that it has cloud connection with the free myGHL service, you can access and control your doser from anywhere in the world. Operate the 2.1 Doser from your phone,…

    $469.90 Regular Price: $

    …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 this pump. And unlike many wimpy pumps out there, the PMUP has enough pressure to push water up 14 feet…

    $49.95 Regular Price: $

    …automatic top up system Yes Yes System Volumes Display tank water volume (L) 502 (133 gal) 602 (160 gal) In cabinet sump water volume (L) 123 (32 gal) 150 (40 gal) Total system water volume (L) 625 (165 gal) 750 (200gal) RO reservoir volume (L) 28.5(7.5 gal) 28.5(7.5 gal) System Dimensions Display…

    $3,999.00 Regular Price: $
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