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    … 1.5:1 Rejection Rate 99% 98% 99% 98% Auto Shut Off Valve Flow Restrictor 550 ml/min …

    $271.99 Regular Price: $339.99
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    … 1.5:1 Rejection Rate 99% 98% 99% 98% Auto Shut Off Valve Flow Restrictor 550 ml/min …

    $254.99 Regular Price: $299.99
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    … 1.5:1 Rejection Rate 99% 98% 99% 98% Auto Shut Off Valve Flow Restrictor 550 ml/min …

    $331.49 Regular Price: $389.99
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    …less back pressure if you require long runs of tubing. This booster pumps requires a transformer which is sold separately. If your RO system has an auto shut off kit or you are planning on installing one the Aquatec PSW Pressure Switches (sold separately) is also required.   Benefits…

    $93.49 Regular Price: $109.99
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    …year    What's Included? * Octo LUX T60 Aquarium * Octo LUX Cabinet Stand * Integrated Slim Overflow System * Auto UP Reservoir * Reef Octopus PVC Sump with Filter Sock * ATO Float Valve * AQ-2000 Return Pump * Reef Octopus Classic 110INT…

    $1,282.50 Regular Price: $1,425.00
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    …75 GPD Auto Flush Flow Kit - Compatible with 75 GPD membranes or 150 GPD Water Saver systems. Kit includes a 500ml/min Auto Flush Flow Restrictor. * 100 GPD Auto Flush Flow Kit - Compatible with 100 GPD membranes or 200 GPD Water Saver systems. Kit includes an 800ml/min Auto Flush Flow…

    $89.24 Regular Price: $104.99
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    … Single Mixed Bed DI Stage with Refillable Cartridge Single Mixed Bed DI Stage with Refillable Cartridge Auto Shut Off Valve Canister Wrench Laundry Tub Connection…

    $229.49 Regular Price: $269.99
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    … Single Mixed Bed DI Stage with Refillable Cartridge Single Mixed Bed DI Stage with Refillable Cartridge Auto Shut Off Valve Canister Wrench Laundry Tub Connection…

    $225.24 Regular Price: $264.99
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    Choose the Aquatec Auto Flush Flow Retrictor that meets your RODI systems flow rate. * 300 mL/min * 400 mL/min * 500 mL/min for 75 GPD single membranes or 150 GPD Water Saver Systems * 600 mL/min * 700 mL/min * 800 mL/min for 100 & 150 GPD single membranes or 200 GPD…

    $46.74 Regular Price: $54.99
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    …follows the contour of the tank down to the floor. All of the reefer systems include a proportionate sump, all the necessary plumbing, integrated auto top off system, and reservoir.   Going from the top of the Reefer XXL system down to the bottom, the first thing you will notice is…

    $3,699.00 Regular Price: $
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    …drip system. By far the most common application for kalkwasser is by adding it to your tanks top off reservoir and then relying on the auto top off system to deliver small amounts of saturated kalkwasser solution throughout the day.    How to Use Kalkwasser with an…

    $53.54 Regular Price: $62.99
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    … Single Mixed Bed DI Stage with Refillable Cartridge Single Mixed Bed DI Stage with Refillable Cartridge Auto Shut Off Valve Canister Wrench Laundry Tub Connection…

    $178.49 Regular Price: $209.99
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    … Single Mixed Bed DI Stage with Refillable Cartridge Single Mixed Bed DI Stage with Refillable Cartridge Auto Shut Off Valve Canister Wrench Laundry Tub Connection…

    $212.49 Regular Price: $249.99
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    …system. By far the most common application for kalkwasser is by adding it to your tanks top off reservoir and then relying on the auto top off system to deliver small amounts of saturated kalkwasser solution throughout the day.    We suggest using BRS Calcium…

    $14.87 Regular Price: $17.49
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    …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…

    $1,620.00 Regular Price: $1,800.00
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    Why does BRS recommend this? Bulk Reef Supply tried many different water level switches and auto top off solutions before giving the Tunze 3155 Osmolater Universal Auto Top Off BRS Recommended status. Despite its higher price this is by far our favorite solution. Spending the extra money on a…

    $159.99 Regular Price: $199.99

    …be orientated in any position.  * Single Button Control * External Temp Probe * 2mm Quartz Glass * Onboard Memory * Auto Overheat Protection * Plastic Safety Enclosure * Suction Cup Mounting * Never Get Your Hands Wet   Each heater…

    $25.49 Regular Price: $29.99
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    …200 gallons   Features: * Reverse flow design * Control the reactor with CO2 needle valve and the effluent valve * Auto fill bubble counter * pH probe holder * Easy to remove lid * Precision effluent control valve * Solid construction * 1/4" quick…

    $332.99 Regular Price: $369.99

    …150 gallons   Features: * Reverse flow design * Control the reactor with CO2 needle valve and the effluent valve * Auto fill bubble counter * pH probe holder * Easy to remove lid * Precision effluent control valve * Solid construction * 1/4" quick…

    $269.99 Regular Price: $299.99

    … Single Mixed Bed DI Stage with Refillable Cartridge Single Mixed Bed DI Stage with Refillable Cartridge Auto Shut Off Valve Canister Wrench Laundry Tub Connection…

    $135.99 Regular Price: $159.99

    …back pressure created by the float valve or pressurized tank to shut off the water supply to the membrane. Without an automatic shut off valve waste water would continue to run out after the float valve is activated or tank becomes full.   Auto Shut Off Valve Installation Instructions

    $8.49 Regular Price: $9.99

    Keep salinity and your aquariums water level consistent with Reef Breeders low profile Prism-ATO. Water level changes are registered in fractions of a second using infrared level sensors and with all internal components built into the sensor, there are no additional controllers to mount. Reef…

    $53.99 Regular Price: $59.99

    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…

    $179.96 Regular Price: $199.95

    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…

    $149.99 Regular Price: $

    …and can be installed on any style of reverse osmosis system that uses 1/4" tubing.   Auto Shut Off Kit Includes: * Float valve * 5ft of tube * Inline check valve * 1/4" auto shut off valve   Auto Shut Off Valve Installation Instructions

    $21.24 Regular Price: $24.99

    Maintain a consistent salinity in your aquarium without relying on failure-prone float switches. Arguably the most time-saving addition to any tank, never worry about your aquarium running dry again. With all internal components built into the optical sensor housing, there are no…

    $80.99 Regular Price: $89.99

    …75 GPD Auto Flush Flow Kit - Compatible with 75 GPD membranes or 150 GPD Water Saver systems. Kit includes a 500ml/min Auto Flush Flow Restrictor. * 100 GPD Auto Flush Flow Kit - Compatible with 100 GPD membranes or 200 GPD Water Saver systems. Kit includes an 800ml/min Auto Flush Flow…

    $89.24 Regular Price: $104.99
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    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…

    $84.99 Regular Price: $99.99

    …of collection * Extra chamber for collecting skimmate * Carbon filter cup to help reduce odor - easily removed for carbon exchange * Auto shut off feature to turn off skimmer and avoid overflows   Item #: OCT-WC140   * Height: 21.75" * Diameter:…

    $211.49 Regular Price: $234.99

    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…

    $84.15 Regular Price: $99.00

    …of collection * Extra chamber for collecting skimmate * Carbon filter cup to help reduce odor - easily removed for carbon exchange * Auto shut off and 5min delay feature to turn off skimmer and avoid overflows   Specifications: * Height: 18" * Diameter:…

    $197.99 Regular Price: $219.99

    Xp Aqua's Ultimate ATO - The most complete ATO on the market    With 2x dual-optical sensors, the Ultimate ATO is the first ATO to include 4 sensors. The 4 sensors allow a dual-stage overfill alarm that is less intrusive as well as a run-dry protection feature that prevents your…

    $179.99 Regular Price: $199.99