null

CO2

Filters
  • On Sale 15%
    MC122 PH Controller w/ PH Electrode - Milwaukee Instruments
    On Sale 15%

    MC122 PH Controller w/ PH Electrode - Milwaukee Instruments

    Milwaukee Instruments

    $130.00
    $110.50
    With Milwaukee's MC Controllers you can monitor and control pH and/or ORP levels.   The Milwaukee Instruments "MC" Controllers have a user selectable set point and a visual "Power Activated" LED notification light. Power to the controller box...
  • On Sale 15%
    CO2 Regulator Includes Solinoid & Bubble Counter MA957 - Milwaukee Instruments
    On Sale 15%

    CO2 Regulator Includes Solinoid & Bubble Counter MA957 - Milwaukee Instruments

    Milwaukee Instruments

    $83.00
    $70.55
    The Milwaukee Instruments MA957 adjustable flow CO2 pressure regulator has two valves to independently measure flow rate and remaining CO2 tank contents (CO2 tank sold separately). Each valve has dual-scale readings in psi and kg/cm. The needle-valve...
  • On Sale 15%
    MC120 PH Monitor w/Probe & Mounting Kit - Milwaukee Instruments
    On Sale 15%

    MC120 PH Monitor w/Probe & Mounting Kit - Milwaukee Instruments

    Milwaukee Instruments

    $87.00
    $73.95
    The MC Monitors are designed to continuously monitor pH, EC or TDS values directly in your reservoir. Each unit features a user select able set-point. An LED visual alarm is activated and flashes when the pH, EC or TDS level rises either Above or Below...
  • On Sale 15%
    MA955 Solenoid Valve for Co2 Dosing - Milwaukee Instruments
    On Sale 15%

    MA955 Solenoid Valve for Co2 Dosing - Milwaukee Instruments

    Milwaukee Instruments

    $38.00
    $32.30
    The solenoid valve is an accessory for the MC122 and the MC125 to automate your dosing of CO2 and makes sure that the plants of your aquarium are always healthy. MA955, solenoid valve, is supplied with 1.5 m cable.
  • CarbonDoser Electronic CO2 Regulator

    CarbonDoser Electronic CO2 Regulator

    CarbonDoser

    $439.99
    The new V2.0 allows for the aquarist to position the CO2 cylinder out of the way in a remote area. Then mounting the "box" anywhere such as up on a board with all the electronics/pH controllers/ETC The 1/8" tubing from the Reg to the Box is...
  • CarbonDoser CO2 Check Valve

    CarbonDoser CO2 Check Valve

    CarbonDoser

    $29.99
    After years of experience with CO2 systems, we discovered why consistent "bubble counts" are, most of the time, impossible. Here's why: ALL check valves, even expensive ones, have a "high crp" or "crack pressure" rating (the pressure at which they...
  • 5 lb CO2 Cylinder – Aluminum - Perfect for Calcium Reactors

    5 lb CO2 Cylinder – Aluminum - Perfect for Calcium Reactors

    Generic

    $79.99
    This tank is one of our best and most popular portable cylinders. Being a 5 lb CO2 tank, it weighs far less than steel and still has more than enough capacity to get the job done. Perfect to refill with CO2. It’s also a great tank for...
  • Classic CR818 GEN 3 - 8" Calcium Reactor RED w/Pump - Geo's Reef

    Classic CR818 GEN 3 - 8" Calcium Reactor RED w/Pump - Geo's Reef

    Geo's Reef

    $775.00
    *******THESE REACTORS ARE IN STOCK AND WILL SHIP SAME DAY NEXT DAY - NO NEED TO WAIT FOR THEM TO BE BUILT******* The Classic CR818 GEN 3 will hold 24 pounds of large grain media and is well suited for large SPS reef displays and...