Controllers & Testing

Filter

Showing all 135 results

Quick View

Hanna Checker Copper Reagent 25 Tests HI702-25

$15.99
Add to cart
Quick View

Hanna Checker High Range Copper Colorimeter HI702

$69.99
Add to cart
Quick View

Hanna Checker High Range Caddy

$20.00
Add to cart
Quick View

Hanna Checker Phosphate Caddy

$19.99
Add to cart
Quick View

HI782-25 Nitrate High Range Reagents (25 tests)

$15.99
Add to cart
Quick View

Hanna Checker Nitrate High Range Colorimeter HI782

$69.99
Add to cart
Sale!
Quick View

Salifert Starter Test Kit Pack

$58.00 $50.00
Add to cart
Quick View

Neptune Sky Reef Aquarium LED Light

$1,129.00
Add to cart
Quick View

Hanna 35 ppt Salinity Calibration Solution

$1.99
Add to cart
Quick View

Hanna Replacement Cuvettes & Caps (2 Pack)

$10.99
Add to cart
Quick View

Neptune Systems GRO Refugium Light

$174.99
Select options
Quick View

Neptune 10.00 Calibration Fluid

$3.99
Add to cart
Quick View

Aquaforest Nitrate Test Kit

$24.99
Add to cart
Quick View

Hanna Marine Nitrate LR Reagent

$20.99
Add to cart
Quick View

Smart Stir Magnetic Stirrer for Test Kits

$39.95
Add to cart
Quick View

Hanna Saltwater Nitrate Low Range Checker

$74.95
Add to cart
Quick View

Neptune 7.00 Calibration Fluid

$3.99
Add to cart
Quick View

Salifert Silicate Test Kit

$20.99
Add to cart
Quick View

Salifert Strontium Test Kit

$42.99
Add to cart
Quick View

Salifert Copper Test Kit

$21.99
Add to cart
Quick View

Salifert Iodine Test Kit

$37.99
Add to cart
Quick View

Salifert Potassium Test Kit

$29.99
Add to cart
Quick View

Salifert Nitrite Test Kit

$17.99
Add to cart
Quick View

AutoAqua Inline Digital TDS Meters – Titanium S3

$59.99
Add to cart
Quick View

Red Sea Iodine Pro Test Kit

$39.99
Add to cart
Quick View

Red Sea Phosphate Pro Test Kit Refill

$26.99
Add to cart
Quick View

Red Sea Phosphate Pro Test Kit

$44.99
Add to cart
Quick View

Hanna Digital Thermometer HI98509

$69.99
Add to cart
Quick View

Hanna 35 ppt Salinity Calibration Solution Sachets – 20 ml – 25 pk

$46.99
Add to cart
Quick View

HM Digital Water Resistant pH/Temp Meter

$60.00
Add to cart
Quick View

Milwaukee MA887 Digital Salinity Refractometer

$166.00
Add to cart
Quick View

Hanna Marine Salinity Tester HI98319

$109.00
Add to cart
Quick View
Out of stock

Aquaforest Phosphate Test Pro

$24.99
out of stock
Quick View

Aquaforest Magnesium Test Pro

$24.95
Add to cart
Quick View

Aquaforest Alkalinity Test Pro

$24.95
Add to cart
Quick View

Aquaforest Calcium Test Pro

$24.99
Add to cart
Quick View

Neptune Apex Trident Reagent 2 Month Supply

$74.99
Add to cart
neptune apex trident
Quick View

Neptune Apex Trident

$819.00
Add to cart
NEPTUNE WAV APEX
Quick View

Neptune WAV – WSK (WAV Starter Kits)

$675.00
Add to cart
neptune optical sensor
Quick View
Out of stock

Neptune Optical Sensor (OS-1) 1 per pack

$33.68
out of stock
neptune flow sensor
Quick View

Neptune Flow Sensor (FS-200) – 2″

$134.93
Add to cart
Neptune AquaBus 6′ Cable
Quick View

Neptune AquaBus 6′ Cable M/M (ABUS6)

$20.49
Add to cart
Neptune AquaBus 3′ Cable
Quick View

Neptune AquaBus 3′ Cable M/M (ABUS3)

$17.49
Add to cart
Quick View

Apex El

$659.93
Add to cart
ICP Analysis
Quick View

ICP Analysis (Single Test)

$39.99
Add to cart
AutoAqua Smart Temperature Security
Quick View

AutoAqua Smart Temperature Security

$75.00
Add to cart
AutoAqua Smart Level Security
Quick View
Out of stock

AutoAqua Smart Level Security

$75.00
out of stock
AutoAqua Smart Skimmer Security
Quick View

AutoAqua Smart Skimmer Security

$75.00
Add to cart
AccuraSea Seawater Reference Calibration Solution
Quick View

Two Little Fishies AccuraSea Seawater Reference Calibration Solution (250ml)

$16.12
Add to cart
Quick View
Out of stock

D-D H2Ocean Saltwater Refractometer

$89.99
out of stock
Red Sea Seawater Refractometer
Quick View

Red Sea Seawater Refractometer

$89.95
Add to cart
Sybon Salinity Refractometer
Quick View

Sybon Salinity Refractometer

$99.00
Add to cart
Quick View

Hydrometer

$19.99
Add to cart
Seneye Slide Refill
Quick View

Seneye Slide Refill (3 Slides)

$39.95
Add to cart
Seneye Web Server and WiFi Module (SWS)
Quick View

Seneye Web Server and WiFi Module (SWS)

$319.00
Add to cart
Seneye Reef
Quick View

Seneye Reef

$229.00
Add to cart
Quick View

Octo titanium grounding probe

$24.99
Add to cart
NEPTUNE WAV PUMP
Quick View

Neptune WAV Pump – Single Pump (4000GPH)

$269.93
Add to cart
Tunze RO Water Controller 8555
Quick View

Tunze RO Water Controller 8555

$259.85
Add to cart
Quick View
Out of stock

Marinlab ICP-OES Test Kit (Aquarium+RO)

$64.99
out of stock
Quick View
Out of stock

Marinlab ICP-OES Test kit (Aquarium Only)

$39.99
out of stock
PINPOINT pH Calibration Solution 4.0
Quick View

American Marine PINPOINT pH Calibration Solution 4.0

$2.99
Add to cart
probe holder
Quick View

Probe Holder

$25.00
Add to cart
EShopps Magnetic Probe Holder
Quick View
Out of stock

EShopps Magnetic Probe Holder

$40.00
out of stock
American Marine PINPOINT pH Calibration Solution 10.0
Quick View

American Marine PINPOINT pH Calibration Solution 10.0

$2.99
Add to cart
Quick View

Coralife Digital Thermometer

$15.00
Add to cart
HM Digital TDS Meter
Quick View

HM Digital TDS Meter

$29.99
Add to cart
Neptune Conductivity / Salinity Probe
Quick View

Neptune Conductivity / Salinity Probe – Lab Grade

$168.68
Add to cart
Neptune Temperature Probe
Quick View

Neptune Temperature probe

$41.99
Add to cart
Neptune Solenoid Valve
Quick View

Neptune Solenoid Valve (SV-1)

$41.99
Add to cart
Neptune Practical Multi-Purpose Utility Pump pmup
Quick View

Neptune Practical Multi-Purpose Utility Pump (PMUP)

$54.99
Add to cart
neptune power supply
Quick View

Neptune Power Supply – 24VDC 36W

$40.43
Add to cart
Neptune PM2 Module
Quick View

Neptune PM2 Module

$114.68
Add to cart
Neptune PM1
Quick View

Neptune PM1 Module

$114.68
Add to cart
Neptune Optical Level Sensor with Magnet
Quick View

Neptune Optical Level Sensor with Magnet

$47.18
Add to cart
NEPTUNE MAGNETIC PROBE RACK (MPR)
Quick View

Neptune Magnetic Probe Rack (MPR)

$53.93
Add to cart
Quick View

Neptune Low Profile Leak Detection Probe (LD-1)

$40.43
Add to cart
Quick View

Neptune LED and pump control module (VDM)

$134.93
Add to cart
Neptune Leak Detection Kit (LDK)
Quick View

Neptune Leak Detection Kit (LDK)

$202.00
Add to cart
neptune double junction pH Probe
Quick View

Neptune Double Junction pH Probe

$101.18
Add to cart
Neptune Lab Grade ORP Probe
Quick View

Neptune Lab Grade ORP Probe

$94.43
Add to cart
neptune fmm module
Quick View

Neptune FMM (Fluid Monitoring Module)

$134.93
Add to cart
neptune flow sensors
Quick View

Neptune Flow Sensors – 1/2″ (FS-50)

$40.43
Add to cart
neptune energy bar
Quick View

Neptune Energy Bar EB832

$379.00
Add to cart
neptune Wireless Expansion Module (WXM)
Quick View
Out of stock

Neptune Wireless Expansion Module (WXM)

$168.68
out of stock
NEPTUNE EB8
Quick View

Neptune EB8 Power Bar

$216.00
Add to cart
NEPTUNE EB4
Quick View

Neptune EB4 Power Bar

$161.93
Add to cart
Neptune Dos
Quick View

Neptune DOS – Dosing and Fluid Metering System

$405.00
Add to cart
neptune ddr - dos dual reservoir
Quick View

Neptune DDR – DŌS DUAL RESERVOIR

$263.93
Add to cart
Neptune DC24 Extension Cable - 10" (M/F)
Quick View

Neptune DC24 Extension Cable – 10″ (M/F)

$26.93
Add to cart
Neptune Cor 15 return pump
Quick View

Neptune COR 15 Return Pump

$395.93
Add to cart
Neptune IO Breakout Box
Quick View

Neptune IO Breakout Box

$54.99
Add to cart
NEPTUNE ATK
Quick View

Neptune ATK (V2) – Automatic Top-Off Kit

$269.00
Add to cart
Neptune Automatic Feeding System (AFS)
Quick View

Neptune Automatic Feeding System (AFS)

$134.93
Add to cart
Neptune AquaBus Cables - 1' M/M
Quick View

Neptune AquaBus Cables – 1′ Cable M/M (ABUS1)

$13.13
Add to cart
Neptune Apex Systemneptune energy bar
Quick View

Neptune Apex System

$1,055.93
Add to cart
Neptune Apex Display Module
Quick View

Neptune Apex Display Module

$131.93
Add to cart
NEPTUNE APEX BASE UNIT
Quick View

Neptune Apex Base Unit

$527.93
Add to cart
Neptune Advanced Leak Detection Module (ALD)
Quick View

Neptune Advanced Leak Detection Module (ALD)

$101.18
Add to cart
Neptune Advanced Leak Detection Low-Profile (under carpet) Probe
Quick View

Neptune Advanced Leak Detection Low-Profile (under carpet) Probe

$40.43
Add to cart
Neptune Conductivity Calibration Solution
Quick View

Neptune Conductivity Calibration Solution (53000)

$6.95
Add to cart
Neptune 1LINK Extension Cable
Quick View

Neptune 1Link Extension Cable (M/F)

$26.93
Add to cart
Neptune 1Link Cables - 10"(M/M)
Quick View

Neptune 1Link Cables – 10″(M/M)

$26.93
Add to cart
Neptune Systems flow sensor
Quick View

Neptune Systems Flow Sensor 1/4″ (FS-25)

$26.93
Add to cart
Neptune Systems Flow Sensors – 1″ (FS-100)
Quick View

Neptune Systems Flow Sensors – 1″ (FS-100)

$80.93
Add to cart
Red Sea Trace-Colors Pro Multi Test Kit
Quick View

Red Sea Trace-Colors Pro Multi Test Kit

$69.99
Add to cart
Red Sea pH Alkalinity Marine Test Kit
Quick View
Out of stock

Red Sea pH Alkalinity Marine Test Kit

$21.10
out of stock
Red Sea Nitrate Nitrite Marine Test Kit
Quick View
Out of stock

Red Sea Nitrate Nitrite Marine Test Kit

$24.85
out of stock
Red Sea Nitrate Pro Reef Test Kit Refill (NO3)
Quick View

Red Sea Nitrate Pro Reef Test Kit Refill (NO3)

$26.95
Add to cart
Red Sea Nitrate Pro Reef Test Kit
Quick View

Red Sea Nitrate Pro Reef Test Kit (NO3)

$45.33
Add to cart
Red Sea Foundation Pro Multi Test Kit (CA, KH, Mg)
Quick View

Red Sea Foundation Pro Multi Test Kit (CA, KH, Mg)

$55.95
Add to cart
Red Sea Marine Care Test Kit - Multi
Quick View

Red Sea Marine Care Test Kit – Multi

$59.80
Add to cart
Red Sea Magnesium Pro Test Refill
Quick View

Red Sea Magnesium Pro Test Refill

$18.89
Add to cart
Red Sea Magnesium Pro Test Kit
Quick View

Red Sea Magnesium Pro Test Kit

$36.75
Add to cart
Red Sea KH Alkalinity Pro Test Refill
Quick View

Red Sea KH Alkalinity Pro Test Refill

$18.89
Add to cart
Red Sea KH Alkalinity Pro Test Kit
Quick View

Red Sea KH Alkalinity Pro Test Kit

$36.75
Add to cart
Red Sea Calcium Pro Test Refill
Quick View

Red Sea Calcium Pro Test Refill

$18.89
Add to cart
Red Sea Calcium Pro Test Kit
Quick View

Red Sea Calcium Pro Test Kit

$36.75
Add to cart
Red Sea Algae Control Pro Test Kit
Quick View

Red Sea Algae Control Pro Test Kit

$62.57
Add to cart
Ecotech ReefLink Wireless Controller
Quick View
Out of stock

Ecotech ReefLink Wireless Controller

$144.99
out of stock
Hanna Phosphate Reagent - Low Range
Quick View

Hanna Phosphate Reagent – Low Range (25 pack)

$15.95
Add to cart
Hanna Calcium Checker Reagents
Quick View

Hanna Calcium Checker Reagents HC (25 Tests) – HI758-26

$36.49
Add to cart
Hanna Alkalinity Checker Reagents
Quick View

Hanna Alkalinity Checker Reagents – Refill (25 Tests)

$15.95
Add to cart
Hanna Phosphorus Ultra Low Range Reagents
Quick View

Hanna Phosphorus Ultra Low Range Reagents (25 pack)

$15.95
Add to cart
Hanna calcium checker
Quick View

Hanna Calcium Checker

$69.99
Add to cart
Hanna Phosphate Ultra Low Range Checker H1 774
Quick View

Hanna Phosphorus Ultra Low Range Checker HI-736

$69.95
Add to cart
Hanna Phosphate Checker
Quick View

Hanna Phosphate Checker – Low Range – HI713

$69.95
Add to cart
Hanna Alkalinity Checker
Quick View

Hanna Alkalinity Checker

$69.95
Add to cart
Salifert Alkalinity (KH) Test kit
Quick View

Salifert Alkalinity (KH) Test kit

$24.99
Add to cart
Salifert Ammonia Test Kit (NH4)
Quick View

Salifert Ammonia Test Kit (NH4)

$19.95
Add to cart
Salifert Calcium (Ca) Test kit
Quick View

Salifert Calcium (Ca) Test kit

$24.99
Add to cart
Salifert Magnesium (Mg) Test kit
Quick View

Salifert Magnesium (Mg) Test kit

$24.99
Add to cart
Salifert Nitrate (NO3) Test kit
Quick View

Salifert Nitrate (NO3) Test kit

$19.99
Add to cart
Salifert PH Test Kit
Quick View

Salifert PH Test Kit

$15.99
Add to cart
Salifert Phosphate (PO4) Test kit
Quick View

Salifert Phosphate (PO4) Test kit

$23.99
Add to cart