RODI & ATO (299)
Best selling Best selling
  • Tunze Multi Tube Holder
    $14.99
    No reviews

    Four hose holders / mounting clamps for Osmolator®, Osmolator® nano and other fastening solutions. For hose diameters from 6 to...

  • Red Sea ReefDose Tubes 4 x 3m(10’) Blue -Green
    $17.25
    No reviews

    Red Sea ReefDose Tubes 4 x 3m(10’) Blue -Green

  • Red Sea ReefDose Accessory Kit Red-Yellow
    $37.95
    No reviews

    Deluxe 4-color tube kit Everything required to connect a dosing pump in one convenient kit.  Available in 2 color versions...

  • Simplicity Dosing Pump
    $149.99
    No reviews

    The Simplicity Dosing Pump is an accurate, effective, and affordable liquid dosing solution. The four dosing heads offer high-precision liquid...

  • AutoAqua Digital Inline TDS - Titanium S2
    $47.99
    No reviews

    AutoAqua Digital Inline TDS - Titanium S2 Titanium One is the smallest inline TDS meter available on the market. It...

  • Kolar Labs Empty RO Cartrige
    $10.88
    No reviews

    Kolar Labs Empty RO Cartrige

  • Aquatic Life DI Color Changing Cartridge (21 cu in)
    $23.54
    No reviews

    21-Cubic Inch Color Changing Mixed Bed Resin Inline Cartridge (330242) Aquatic Life Color Changing Mixed Bed DI Cartridges are the...

  • AquaFX Economy 4 Stage 100g RO/DI System
    $118.99 $169.99
    No reviews

    The Economy RODI is a Reverse Osmosis and Deionization system. The standard unit comes with 1-micron sediment filtration, a carbon...

  • Simplicity 5 Gallon Easy-Fill ATO Reservoir
    $149.95
    No reviews

    Elevate Your Top-off Routine   Simplifies Maintenance This first-of-its-kind ATO Reservoir features a wide-mouth lid that converts to a funnel...

  • Redsea ReefCan 18L (5 gallon)
    $79.00
    No reviews

    The ReefCan 18 and ReefCan 40 can supply the ATO of a 50-gal or 130-gal tank with enough RO water...

  • Red Sea ReefDose Tubes 4 x 3m(10’)  Red-Yellow
    $17.25
    No reviews

    Red Sea ReefDose Tubes 4 x 3m(10’)  Red-Yellow

  • Red Sea ReefDose Accessory Kit Blue -Green
    $37.95
    No reviews

    Deluxe 4-color tube kit Everything required to connect a dosing pump in one convenient kit.  Available in 2 color versions...

  • Simplicity Heavy-Duty Silicone Dosing Pump Tubing - Red - 10 Feet
    $5.95
    No reviews

    Simplicity Heavy-Duty Silicone Dosing Pump Tubing - Red - 10 Feet Stays flexible and resists cracking. Available in 3 vibrant...

  • IceCap Magnetic Mount Float Valve
    $38.49
    No reviews

    IceCap Magnetic Float Valve   IceCap Magnetic Mount Float Valve comes with universal tubing retainer and tubing

  • Simplicity 6L Dosing Container 3 x 2L
    $99.95

    OUT OF STOCK

    No reviews

    This container is perfect for keeping your solutions organized, and your sump area neat and clean. Each chamber of the...

  • JBJ Auto Top Off Replacement Float Sensor
    $30.00

    OUT OF STOCK

    No reviews

    Replacement Float Sensor for the JBJ Auto Top Off Unit.

  • Neptune 16 Meter Tubing for Dosing System
    $24.99
    No reviews

    Neptune 16 Meter Tubing for Dosing System  

  • Simplicity Heavy-Duty Silicone Dosing Pump Tubing - Red/Yellow/Green/Blue x 10 Foot Each
    $15.95
    No reviews

    Simplicity heavy-duty silicone dosing tubing is strong, flexible, and chemical- and temperature-resistant. Designed for precise delivery of liquids, like calcium,...

  • Tunze Osmolator 3 Nano- OPEN BOX RETURN
    $119.99 $149.99
    No reviews

    OPEN BOX RETURN- SAVE 20%   The TUNZE® Osmolator 3 nano is a simple and safe device with just one...

  • AUTOAQUA Smart Doser 2 - Hang-On Doser
    $215.99
    No reviews

    World’s First & Only Hang-On Doser Intelligent Dosing Made Simple and Reliable   Ultra compact design with intuitive aquaLine App...

  • BRS One Cartridge Refill (1.25 lbs.) DI Resin (Color Changing)
    $18.99
    No reviews

    BRS One Cartridge Refill (1.25 lbs.) DI Resin (Color Changing) DI Resin is necessary to reduce Total Dissolved Solids (TDS)...

  • Kamoer X1/Hydros Dosing Pump Bracket
    $11.99
    No reviews

    Mount is compatible with Kamoer X1(Bluetooth), Kamoer F1, and HYDROS Single Dosing Pump. (Dosing pump NOT included)   Single Dosing...

  • Red Sea ReefDose 2
    $289.00
    No reviews

    ReefDose Accurate. Smart. Intuitive ReefDose is designed and built specifically for the daily supplementing of reef aquariums.   ReefDose uses...

  • IceCap 4 Stage RODI 200gpd
    $241.99

    OUT OF STOCK

    No reviews

    IceCap 4-Stage Reverse Osmosis Water Filtration Systems The IceCap RO/DI water filtration system is a four-stage reverse osmosis de-ionization filter...

  • Pentek ChlorPlus 10" Chloramine Reduction Carbon Block
    $40.99
    No reviews

    The ChlorPlus carbon block cartridges help reduce sediment while providing greater chloramine performance capacities than granular carbon. They also significantly...

  • Aquatic Life RO Buddie Carbon Cartridge
    $7.99 $9.99
    No reviews

    Carbon Block Pre-Filter Cartridge for the RO Buddie. Features: Designed for use with the RO Buddie 50 & 100 GPD...

  • Bubble Magus Dosing Replacement Tubes Only, No Connector (3pcs)
    $14.99
    No reviews

    Bubble Magus Replacement Tubing, set of 3pcs. Does not include end connections. Approximately 4-6" long

  • Garden Hose Connector 1/4" - Mur-lok
    $5.39
    No reviews

    3/4 in Garden Hose Adapter for 1/4" tubing - speed fit

  • .35 Micron Pleated Sediment Cartridge
    $19.99
    No reviews

    Highley effiecient and economical filter cartridge made of pleated Polyester-Plus filter media   - Lower overall operating cost - High...

  • 1/4 inch Murlok Check Valve - Red Collet
    $7.99
    No reviews

    1/4 inch Murlok Check Valve - Red Collet

  • AquaFX Add-on DI Canister Stage
    $49.99
    No reviews

    NOTE: This item dropships from the manufacturer. This filter add on provides a final deionization stage to your reverse osmosis...

  • Eshopps H20 5 - 5 Gallon Auto Top Off Reservoir Tank
    $159.98

    OUT OF STOCK

    No reviews

    Simple and essential tool for holding water for topping off your display tank over extended period of time. Basic key...

  • AutoAqua Smart Auto Water Changer Lite
    $239.99
    No reviews

    Innovative 2 in 1 Auto-Top-Off and Auto-Water-Change system achieves the aims of automatic tank maintenance. With precise and smooth DC...

  • Koller Products Aqua Lifter Dosing Pump
    $39.99
    No reviews

    Aqua Lift is ideal for pumping small amounts of water from one location to the next - up to a...

  • Red Sea ReefDose Measuring Cylinder
    $12.65
    No reviews

    Red Sea ReefDose Measuring Cylinder

  • Neptune ATK v2 - Automatic Top-Off Kit
    $269.99
    No reviews

    No More Manual Topping Off Leave Home for Days without Worry Stop Lugging Buckets and Jugs Maintain Consistent Salinity Levels...

  • Bashsea Signature Series 10 Gallon ATO Container - WHITE
    $199.00

    OUT OF STOCK

    No reviews

    Bashsea Signature Series 10 Gallon ATO Container - WHITE color series Dimension: 10 x 15 x 16"

  • Neptune Systems Dos Dual Reservoir
    $259.99
    No reviews

    This attractive fluid containment system stores your dosing fluids in style and even tells you when it’s time to refill!...

  • Hydros Dosing Pump- OPEN BOX RETURN
    $58.90 $69.29

    OUT OF STOCK

    No reviews

    OPEN BOX RETURN- SAVE 15%   The HYDROS Dosing Pump is a simple and affordable way to automate the addition...

  • Simplicity Dosing Head Pump Tubing - per piece
    $1.95
    No reviews

    Simplicity Dosing Head Pump Tubing - per piece

  • XpAqua Duetto V2 Dual-Sensor Auto Top Off (ATO) - OPEN BOX RETURN
    $118.99 $139.99
    No reviews

    OPEN BOX RETURN- SAVE 15%   World’s Smallest Dual-Sensor Aquarium Auto Top Off   Features: NEW! Controller programming & circuitry...

  • Tunze Osmolator Nano 3152 - FACTORY REFURBISHED
    $68.99 $114.99

    OUT OF STOCK

    No reviews

    FACTORY REFURBISHED  - SAVE 40% - 60 DAY LIMITED FACTORY WARRANTY. Any product we receive back where customer claims is...

  • IceCap 5 Gal Freshwater Reservoir
    $120.99
    No reviews

    Freshwater Reservoir For Storing Auto-Top-Off Water IceCap Freshwater Reservoirs are designed to hold a fixed amount of top-off water for...

  • AutoAqua Smart ATO Nano G2 - HOB Auto Top Off
    $131.99
    No reviews

    An unique HOB (Hang-on-Back) ATO integrated with one optical dual sensor and one replaceable Buit-in Anti-Siphon diaphragm pump, which is...

  • Hydros Control X10 Dosing Aquarium Controller
    $879.99
    No reviews

    The Control X10 is the ultimate HYDROS system controller with twin Drive ports, four Sense ports, a pH/ORP port, a...

  • 500 GPD 7-Stage RO/DI Blue Fin PRO Light Commercial System w/Booster Pump - AquaFX
    $999.99
    No reviews

    AquaFX Blue Fin PRO Light-Commercial 500GPD 7-Stage RO/DI System - perfect for small/medium size coral farmers and aquarium stores that...

  • Reef Factory Dosing Pump Head for DP/DPx3/KH (blue)
    $16.99 $23.67
    No reviews

    Dosing pump Head for Dosing pump / Dosing pump X3 / Dosing pump X4 / KH keeper Plus (blue) Head...

  • Reef Factory Dosing Pump Holder (1 unit)
    $9.99 $17.76
    No reviews

    Reef Factory Dosing Pump Holder (1 unit) Mounting bracket for one dosing pump. With the shelf, you can aesthetically and...

  • IceCap Reverse Osmosis Booster Pump Kit
    $149.99
    No reviews

    This all-in-one kit contains everything you need to safely install and operate the booster pump on any exiting reverse osmosis...

  • Red Sea ReefDose 4
    $449.00
    No reviews

    ReefDose Accurate. Smart. Intuitive ReefDose is designed and built specifically for the daily supplementing of reef aquariums.   ReefDose uses...

  • Kamoer X1 PRO T Stepper Pump
    $164.99
    No reviews

    Adjustable Flow Rate >70mL per minute, Continuously! The X1 PRO T is a single-channel micropump equipped with a reliable stepper...