Controllers and Testing
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Out of Stock
Hanna Instruments – Checktemp With Stainless Steel Probe
$39.99 -
Add to cart
HYDROS – Control XP8 Pro Energy Bar
$279.99 -
Add to cart
Neptune Systems – Apex WAV Starter Kit
$479.99 -
Add to cart
Neptune Systems – Apex PAR Monitoring Kit
$324.99 -
Out of Stock
Neptune Systems – Apex VDM Module
$104.99 -
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Red Sea – Marine Care Multi Test Kit
$69.99 -
Add to cart
HYDROS – DC Solenoid Valve
$24.99 -
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HYDROS – Control X3 Pro Pack
$539.99 -
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Red Sea – Phosphate Pro Test Kit
$49.99 -
Add to cart
Salifert – Phosphate Test Kit
$21.99 -
Add to cart
Neptune Systems – Apex 1LINK Power & Communication Module
$159.99 -
Add to cart
Neptune Systems – Apex FMK Flow Monitoring Kit
$209.99 -
Out of Stock
HYDROS – Sense Port 9′ Extension Cable
$9.99 -
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HYDROS – Dosing Pump
$59.99 -
Add to cart
HYDROS – 4 Outlet WIFI Power Strip
$39.99 -
Add to cart
HYDROS – ATO Kit
$79.99 -
Out of Stock
HYDROS – IceCap Gyre 1K/2K/3K/4K WaveEngine Adapter
$11.99 -
Add to cart
HYDROS – Control X3 Monitor Pack
$299.99 -
Out of Stock
Neptune Systems – Apex Lunar LED String 3 LEDs
$44.99 -
Add to cart
AquaTop – Titanium Heater
$79.99 -
Out of Stock
HYDROS – Command Bus Terminator
$4.99 -
Out of Stock
AquaTop – 300 Watt Heater
$99.99 -
Add to cart
Red Sea – KH / Alkalinity Pro Test Kit
$39.99 -
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Salifert – Calcium Test Kit
$21.99 -
Add to cart
Salifert – Iodine Test Kit
$29.99 -
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API – Nitrite Test Kit
$12.99 -
Add to cart
AquaTop – 400 Watt Heater
$104.99 -
Out of Stock
Salifert – Strontium Test Kit
$34.99 -
Add to cart
Neptune Systems – Apex Temperature Probe
$32.99 -
Add to cart
HYDROS – Control X2 Starter Kit
$199.99 -
Add to cart
Neptune Systems – Apex WAV Single Pump
$184.99 -
Out of Stock
HYDROS – WaveEngine V2
$299.99 -
Add to cart
Red Sea – Algea Control Pro Test Kit
$59.99 -
Add to cart
Neptune Systems – Energy Bar EB832
$289.99 -
Out of Stock
Neptune Systems – Apex Lunar LED String 5 LEDs
$64.99 -
Out of Stock
Neptune Systems – APEX BRAIN WIFI
$399.99 -
Add to cart
Hanna Instruments – Nitrate Low Range
$4.99 – $59.99 -
Add to cart
HYDROS – Control X4 (Controller Only)
$349.99 -
Add to cart
HYDROS to Pump Adapter – Gyre XF330/XF350
$11.99 -
Out of Stock
HYDROS – Rope Leak Cable Extension
$29.99 -
Add to cart
Neptune Systems – Apex COR20 Pump
$374.99 -
Add to cart
VCA – SPS Kit for Apex Conductivity
$27.99 -
Add to cart
Hanna Instruments – PH Storage Solution
$11.99 -
Add to cart
API – Nitrate Test Kit
$12.99 -
Add to cart
Hanna Instruments – pH Calibration Solution
$1.99 -
Add to cart
Hanna Instruments – Salinity Calibration
$1.99 -
Out of Stock
Neptune Systems – Apex to Varios (Y Cable)
$17.99 -
Out of Stock
HYDROS – Smart Wifi Plug
$23.99 -
Out of Stock
HYDROS – Rope Leak Sensor Kit
$39.99 -
Add to cart
Hanna Instruments – Copper High Range
$59.99 -
Add to cart
HYDROS – Leak Sensor
$39.99 -
Out of Stock
Neptune Systems – Apex WXM Module
$124.99 -
Add to cart
Hanna Instruments – Ultra-Low Range Phosphate (PPM)
$9.99 – $59.99 -
Add to cart
Hanna Instruments – pH Tester
$39.99 -
Add to cart
HYDROS – Klir Drive Port Adapter
$13.99 -
Add to cart
Salifert – Nitrate Test Kit
$21.99 -
Add to cart
Neptune Systems – Trident
$639.99 -
Add to cart
HYDROS – Control X4 Starter Pack
$449.99 -
Add to cart
HYDROS – Temperature Probe
$24.99 -
Add to cart
API – High Range pH Test Kit
$12.99 -
Add to cart
API – Alkalinty Test Kit
$12.99 -
Out of Stock
API – Copper Test Kit
$12.99 -
Add to cart
Neptune Systems – Apex Magnetic Probe Holder
$44.99 -
Out of Stock
HYDROS – Maxspect Gyre 150/250/280 WaveEngine Adapter
$11.99 -
Add to cart
Neptune Systems – Trident Reagent 6 month supply
$104.99 -
Add to cart
Neptune Systems – Apex Automatic Top-Off Kit V2
$224.99 -
Add to cart
HYDROS – Control XS Starter Pack
$199.99 -
Add to cart
Neptune Systems – Apex DDR Dual Reservoir
$204.99 -
Add to cart
Neptune Systems – Apex COR15 Pump
$319.99 -
Out of Stock
EcoTech Marine – Versa Dosing Pump Four Head
$799.99 -
Add to cart
API – Reef Master Test Kit
$34.99 -
Out of Stock
HYDROS – Command Bus 50′ Data Only Cable
$35.99 -
Add to cart
HYDROS – Water Level Sensor
$39.99 -
Add to cart
HYDROS – Control X4 Pro Pack
$659.99 -
Add to cart
Salifert – pH Test Kit
$21.99 -
Add to cart
HYDROS – Temp Sensor
$24.99 -
Add to cart
API – Phosphate Test Kit
$12.99 -
Add to cart
Neptune Systems – Apex Display Module
$109.99 -
Add to cart
Neptune Systems – Apex Practical Multi-Purpose Utility Pmup V2
$44.99 -
Add to cart
Neptune Systems – Apex DOS Multi-Purpose Dosing & Fluid Metering System
$329.99 -
Add to cart
Hanna Instruments – Ultra-Low Range Phosphorus (PPB)
$9.99 – $59.99 -
Out of Stock
Hanna Instruments – Marine Salinity Tester
$74.99 -
Out of Stock
HYDROS – Drive Port 9′ Extension Cable
$9.99 -
Add to cart
API – Ammonia Test Kit
$12.99 -
Add to cart
HYDROS – Automatic Feeder
$34.99 -
Add to cart
Salifert – Copper Test Kit
$21.99 -
Add to cart
Red Sea – Calcium Pro Test Kit
$39.99 -
Out of Stock
Alkatronic
$999.99 -
Add to cart
Hanna Instruments – Cuvettes Pair
$8.99 -
Out of Stock
AquaTop – Nano Heater 25 Watt
$24.99 -
Add to cart
Neptune Systems – Apex FS-25 1/4″ Flow Sensor
$32.99 -
Add to cart
Hanna Instruments – Marine Master
$399.99 -
Add to cart
Neptune Systems – Apex Controller
$879.99 -
Add to cart
HYDROS – Control X3 Starter Pack
$299.99 -
Add to cart
Hanna Instruments – Alkalinity
$9.99 – $59.99 -
Out of Stock
Neptune Systems – Apex FS-50 1/2″ Flow Sensor
$32.99 -
Add to cart
HYDROS – 6ft System Command Bus Cable
$9.99 -
Add to cart
API – Calcium Test Kit
$12.99 -
Out of Stock
EcoTech Marine – Versa Dosing Pump Single Head
$199.99 -
Out of Stock
Salifert – Magnesium Test Kit
$21.99 -
Out of Stock
Hanna Instruments – Digital Refractometer
$189.99 -
Add to cart
Neptune Systems – 12 Volt Apex Power Supply
$17.99 -
Add to cart
Neptune Systems – Apex DOS Replacment Head
$34.99 -
Add to cart
Neptune Systems – Trident Reagent 2 month supply
$49.99 -
Add to cart
Red Sea – Foundation Pro Test Kit
$59.99 -
Add to cart
Copper reagent 25
$9.99 -
Out of Stock
HYDROS – Control X2 (Controller Only)
$159.99 -
Add to cart
HYDROS – Float Switch
$14.99 -
Add to cart
Salifert – Nitrite Test Kit
$21.99 -
Add to cart
Neptune Systems – Sky Light
$869.99 -
Add to cart
Neptune Systems – Apex Optical Sensor
$32.99 -
Add to cart
API – Saltwater Master Test Kit
$34.99 -
Add to cart
Neptune Systems – Apex (AFS) Automatic Feeding System
$109.99 -
Out of Stock
Neptune Systems – Apex Lunar Simulator Module
$69.99 -
Add to cart
Neptune Systems – Apex I/O Breakout Box
$44.99 -
Out of Stock
HYDROS – Maxspect Gyre 330/350 WaveEngine Adapter
$11.99 -
Add to cart
Salifert – Flatworm eXit
$18.99 -
Add to cart
AquaTop – 500 Watt Heater
$109.99 -
Add to cart
Salifert – Alkalinity Test Kit
$21.99 -
Add to cart
Neptune Systems – Apex EL
$559.99 -
Add to cart
Red Sea – Magnesium Pro Test Refill
$22.99 -
Add to cart
HYDROS – Reef Octopus Varios/Octo Pulse WaveEngine Adapter
$11.99 -
Add to cart
Red Sea – Magnesium Pro Test Kit
$39.99 -
Out of Stock
HYDROS – Wave Engine Ecotech Compatible
$349.99 -
Add to cart
HYDROS – Control XS
$159.99 -
Out of Stock
HYDROS – Dual Inline TDS Sensor
$49.99 -
Add to cart
Hanna Instruments – High Range Nitrate
$14.99 – $59.99 -
Add to cart
HYDROS – WaveEngine LE
$199.99 -
Add to cart
HYDROS – Skimmer Sensor
$39.99 -
Add to cart
HYDROS – Maxspect Gyre XF280 WaveEngine Adapter
$11.99 -
Out of Stock
HYDROS – WaveEngine APX Link
$12.99