Controllers & Monitors

Tube Holder for Dosing / RO Tubing. Version may vary, see picture's

Neptune Conductivity Calibration Solution - 53.0 mS

The Neptune Apex Trident - Marine Aquarium CA, KH & MG Water Analyzer   The Trident is a self contained automatic titration colorimeter. That’s...

The Neptune Systems Probe Calibration Kit includes everything you need to calibrate your pH probe and salinity probe for reef tank conditions. The ...

Neptune Systems Temperature Probe For Apex Controllers

Special 10% price match offer for this Neptune product! If you find a lower price in Canada, we'll match it plus give you an extra 10% of the diffe...

  XP Aqua RO/DI Flood Guardian - Electronic Auto Shut Off Valve Kit (AKA The Marriage Saver)   Tired of flooding your kitchen, garage or bathroom?...

Neptune Lab grade Conductivity (salinity) Probe Dual Range 0 to 999 us/cm or 0 to 99.9 ms/cm Lab quality probe w/10' cable Minidin 4 Connector

The Milwaukee Instruments "MC" Controllers have a user selectable set point and a visual "Power Activated" LED notification light. Power to the ...

Special 10% price match offer for this Neptune product! If you find a lower price in Canada, we'll match it plus give you an extra 10% of the diffe...

Special 10% price match offer for this Neptune product! If you find a lower price in Canada, we'll match it plus give you an extra 10% of the diffe...

  A POWERHEAD THAT ANSWERS ALL YOUR NEEDS   Extreme flow (~4000+ gph) Compact size (less total mass compared to nearly all similar flow pumps) Dir...

SKIMMER SECURITY MADE SIMPLE Smart Skimmer Security by AutoAqua uses the uniquely-designed contactless optical sensor to prevent the protein...

The pH600 is a pH tester can be used in many different applications and is considered an excellent starter unit for digital pH measurement. The ...

15’ Male/Male AquaBus cable.  Used to connect an AquaBus module (PM1, PM2, EB8, etc) to another AquaBus Module or Apex base unit.  ...

Special 10% price match offer for this Neptune product! If you find a lower price in Canada, we'll match it plus give you an extra 10% of the diff...

Special 10% price match offer for this Neptune product! If you find a lower price in Canada, we'll match it plus give you an extra 10% of the diffe...

EnergyBar 4 Features The EnergyBar 4 module features 4 independently controllable outlets. With power failure detection, active electrical current ...