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Aquarium Meters & Controllers

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Top rated

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  • Milwaukee 716690 PH Controller

    Milwaukee 716690 PH Controller

    (18)
    87% agree - Would recommend
    C $217.54 New
    C $137.72 Used
  • Aquatop Floating Glass Aquarium Thermometer W/ Suction Cup Mount

    Aquatop Floating Glass Aquarium Thermometer W/ Suction Cup Mount

    (12)
    100% agree - Would recommend
    C $10.95 New
  • HM Digital Dm-1 In-line Dual TDS Monitor 0-9990 PPM Range 2 Readout Accuracy

    HM Digital Dm-1 In-line Dual TDS Monitor 0-9990 PPM Range 2 Readout Accuracy

    (34)
    100% agree - Would recommend
    C $41.30 New
  • Zoo Med Aquasun Aquarium Timer AA10

    Zoo Med Aquasun Aquarium Timer AA10

    (17)
    88% agree - Would recommend
    C $22.88 New
  • Coralife Energy Savers ACLAF877 Deep Six Hydrometer

    Coralife Energy Savers ACLAF877 Deep Six Hydrometer

    (14)
    85% agree - Would recommend
    C $18.95 New

Best selling

See All
  • Milwaukee Instruments Ph & ORP Controller Mc125

    Milwaukee Instruments Ph & ORP Controller Mc125

    C $315.39 New
  • Seneye Reef Aquarium Monitor and Par Meter

    Seneye Reef Aquarium Monitor and Par Meter

    (3)
    C $269.87 New
    C $206.59 Used
  • Milwaukee 716690 PH Controller

    Milwaukee 716690 PH Controller

    (18)
    C $217.54 New
    C $137.72 Used
  • Aquatop Floating Glass Aquarium Thermometer W/ Suction Cup Mount

    Aquatop Floating Glass Aquarium Thermometer W/ Suction Cup Mount

    (12)
    C $10.95 New
  • T100 Fully Electronic Aquarium Heater (100 Watt) up to 30 Gallons - Fluval

    T100 Fully Electronic Aquarium Heater (100 Watt) up to 30 Gallons - Fluval

    C $61.96 New
  • HM Digital Ph Electrode Storage Solution 60cc Bottle

    HM Digital Ph Electrode Storage Solution 60cc Bottle

    (7)
    C $13.70 New
  • T150 Fully Electronic Aquarium Heater (150 Watt) up to 45 Gallons - Fluval

    T150 Fully Electronic Aquarium Heater (150 Watt) up to 45 Gallons - Fluval

    C $55.76 New
  • Hagen Marina Deluxe Floating Thermometer With Suction Cup 11204

    Hagen Marina Deluxe Floating Thermometer With Suction Cup 11204

    (1)
    C $12.38 New

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3,033 results

Sort: Best Match

  • Best Match
  • Time: ending soonest
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    • Profilux Plus II controller with Salinity Card w/ Power Cord - Image 1 of 4
    • Profilux Plus II controller with Salinity Card w/ Power Cord - Image 2 of 4
    • Profilux Plus II controller with Salinity Card w/ Power Cord - Image 3 of 4
    • Profilux Plus II controller with Salinity Card w/ Power Cord - Image 4 of 4

    Profilux Plus II controller with Salinity Card w/ Power Cord

    Pre-Owned
    C $275.58
    C⁣K⁣ ⁣B⁣K⁣Ѕ⁣p⁣ ⁣o⁣n⁣J⁣F⁣ ⁣s⁣o⁣O⁣W⁣ ⁣C⁣r⁣e⁣d⁣⁣Q⁣ ⁣⁣⁣ ⁣
    • RedSea ReefDose 4 Head Doser with Containers - Image 1 of 4
    • RedSea ReefDose 4 Head Doser with Containers - Image 2 of 4
    • RedSea ReefDose 4 Head Doser with Containers - Image 3 of 4
    • RedSea ReefDose 4 Head Doser with Containers - Image 4 of 4

    RedSea ReefDose 4 Head Doser with Containers

    Pre-Owned · Red Sea
    C $688.95
    or Best Offer
    S⁣р⁣9⁣U⁣o⁣ ⁣n⁣J⁣s⁣A⁣ ⁣3⁣P⁣ ⁣o⁣r⁣J⁣e⁣d⁣Q⁣⁣⁣⁣⁣⁣⁣⁣⁣
    • VBR-Aqua IP68 PAR Meter For Aquariums & Reefs R, G, B PAR Separately - Image 1 of 4
    • VBR-Aqua IP68 PAR Meter For Aquariums & Reefs R, G, B PAR Separately - Image 2 of 4
    • VBR-Aqua IP68 PAR Meter For Aquariums & Reefs R, G, B PAR Separately - Image 3 of 4
    • VBR-Aqua IP68 PAR Meter For Aquariums & Reefs R, G, B PAR Separately - Image 4 of 4

    VBR-Aqua IP68 PAR Meter For Aquariums & Reefs R, G, B PAR Separately

    Pre-Owned
    C $175.00
    or Best Offer
    0⁣H⁣S⁣ ⁣I⁣J⁣p⁣ ⁣G⁣W⁣o⁣n⁣s⁣o⁣ ⁣r⁣е⁣d⁣S⁣⁣⁣⁣8⁣ ⁣⁣⁣⁣S⁣
    • Customizable Apex Neptune Breakout Box 6 switches Many Colors Available - Image 1 of 4
    • Customizable Apex Neptune Breakout Box 6 switches Many Colors Available - Image 2 of 4
    • Customizable Apex Neptune Breakout Box 6 switches Many Colors Available - Image 3 of 4
    • Customizable Apex Neptune Breakout Box 6 switches Many Colors Available - Image 4 of 4

    Customizable Apex Neptune Breakout Box 6 switches Many Colors Available

    Brand New
    C $55.10
    or Best Offer
    S⁣p⁣H⁣о⁣O⁣n⁣s⁣ ⁣o⁣r⁣e⁣D⁣M⁣d⁣⁣ ⁣⁣M⁣⁣⁣9⁣ ⁣7⁣⁣⁣⁣⁣I⁣
  • Neptune Systems APEX A3 Pro New Sealed In Box - Image 1 of 4

    New ListingNeptune Systems APEX A3 Pro New Sealed In Box

    Brand New · Neptune Systems
    C $1,164.31
    ⁣D⁣⁣⁣⁣⁣C⁣ ⁣M⁣P⁣ ⁣S⁣⁣6⁣⁣⁣ ⁣S⁣8⁣⁣ ⁣⁣H⁣⁣⁣ ⁣⁣⁣
  • Used Neptune systems Apex energy bar 8 EB8 For (Read Description) - Image 1 of 2

    New ListingUsed Neptune systems Apex energy bar 8 EB8 For (Read Description)

    Pre-Owned · Neptune Systems
    C $151.56
    ⁣8⁣⁣9⁣⁣⁣⁣⁣ ⁣E⁣⁣Y⁣⁣ ⁣2⁣8⁣ ⁣2⁣⁣⁣⁣9⁣ ⁣G⁣U⁣ ⁣⁣8⁣
  • Neptune Systems APEX Display Module Silver - Image 1 of 2

    New ListingNeptune Systems APEX Display Module Silver

    Pre-Owned · Neptune
    C $110.22
    ⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣W⁣4⁣ ⁣W⁣⁣Y⁣⁣⁣⁣⁣⁣⁣ ⁣F⁣A⁣ ⁣4⁣⁣
  • Acryli Liquid Storage Bucket dosing pump Auto Top Off System Reservoir Container - Image 1 of 4

    Acryli Liquid Storage Bucket dosing pump Auto Top Off System Reservoir Container

    Brand New
    C $27.54 to C $82.66
    Free shipping
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  • Neptune Systems Apex Lab Grade Salinity - Conductivity Probe MFG 2018 - Image 1 of 4

    New ListingNeptune Systems Apex Lab Grade Salinity - Conductivity Probe MFG 2018

    Pre-Owned · Neptune Systems
    C $177.75
    ⁣⁣J⁣⁣⁣S⁣⁣ ⁣B⁣O⁣⁣⁣ ⁣Z⁣⁣E⁣ ⁣⁣⁣⁣R⁣0⁣⁣⁣⁣⁣ ⁣B⁣
  • Tunze Osmolator 3 Nano - Image 1 of 3

    Tunze Osmolator 3 Nano

    Brand New · Tunze
    C $179.11
    C $30.13 shipping
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  • 1 Used Neptune Systems Apex Energy Bar 832 EB832 With Mount - Image 1 of 4

    New Listing1 Used Neptune Systems Apex Energy Bar 832 EB832 With Mount

    Pre-Owned · Neptune
    C $299.00
    2⁣C⁣ ⁣⁣⁣8⁣D⁣⁣⁣ ⁣P⁣N⁣⁣⁣⁣⁣⁣ ⁣J⁣⁣⁣U⁣⁣ ⁣⁣W⁣8⁣⁣
  • Neptune Systems Apex Lab Grade Salinity - Conductivity Probe MFG 2019 - Image 1 of 4

    New ListingNeptune Systems Apex Lab Grade Salinity - Conductivity Probe MFG 2019

    Pre-Owned · Neptune Systems
    C $191.53
    O⁣A⁣⁣ ⁣⁣7⁣R⁣ ⁣⁣⁣D⁣⁣2⁣ ⁣⁣⁣⁣⁣⁣A⁣H⁣ ⁣A⁣P⁣ ⁣⁣⁣⁣
  • Used Neptune Systems Apex Energy Bar 832 EB832 - Image 1 of 4

    Used Neptune Systems Apex Energy Bar 832 EB832

    Pre-Owned · Neptune
    C $316.90
    ⁣⁣⁣E⁣K⁣⁣ ⁣A⁣⁣⁣J⁣⁣ ⁣⁣⁣⁣⁣N⁣⁣M⁣⁣ ⁣4⁣⁣S⁣⁣ ⁣⁣
  • Neptune Apex Breakout Box DC Jacks w/ 6 cable leads included Hidden Mounting - Image 1 of 4

    Neptune Apex Breakout Box DC Jacks w/ 6 cable leads included Hidden Mounting

    Brand New
    C $49.59
    or Best Offer
    73 sold
    2⁣K⁣ ⁣O⁣C⁣ ⁣S⁣B⁣p⁣U⁣ ⁣5⁣о⁣n⁣1⁣s⁣ ⁣o⁣r⁣e⁣d⁣U⁣F⁣⁣ ⁣⁣⁣D⁣
  • Neptune systems temperature probe and dosing tube - Image 1 of 3

    Neptune systems temperature probe and dosing tube

    Brand New · Neptune Systems
    C $75.00
    or Best Offer
    C $16.00 shipping
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  • American Marine Pinpoint ORP Probe - Image 1 of 1

    American Marine Pinpoint ORP Probe

    Brand New
    C $84.04
    C $17.28 shipping
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  • Apex Neptune Systems PM2 Salinity / Conductivity Module. Orange Label - Image 1 of 2

    New ListingApex Neptune Systems PM2 Salinity / Conductivity Module. Orange Label

    Pre-Owned · Neptune Systems
    C $103.33
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  • Neptune Systems Apex ASM Module PMK PAR Monitoring Kit - Neptune Systems - Image 1 of 4

    Neptune Systems Apex ASM Module PMK PAR Monitoring Kit - Neptune Systems

    Pre-Owned · Neptune Systems
    C $330.68
    10 watching
    ⁣5⁣⁣⁣Y⁣⁣ ⁣⁣⁣P⁣S⁣⁣ ⁣O⁣⁣E⁣ ⁣Y⁣K⁣⁣ ⁣⁣8⁣7⁣⁣⁣⁣ ⁣
  • Neptune Systems APEX Display Module - Image 1 of 2

    New ListingNeptune Systems APEX Display Module

    Pre-Owned · Neptune
    C $103.33
    9⁣G⁣ ⁣V⁣H⁣⁣⁣ ⁣W⁣2⁣ ⁣Y⁣K⁣ ⁣X⁣⁣P⁣⁣⁣ ⁣⁣4⁣⁣⁣⁣⁣ ⁣⁣
  • Focustronic Alkatronic Professional Pro Alkalinity Controller - Image 1 of 4

    Focustronic Alkatronic Professional Pro Alkalinity Controller

    Pre-Owned
    C $688.94
    C $74.24 shipping
    Y⁣⁣⁣⁣D⁣⁣ ⁣D⁣⁣K⁣⁣⁣ ⁣⁣⁣⁣R⁣⁣V⁣ ⁣⁣⁣⁣Q⁣⁣⁣B⁣ ⁣
  • 1 Neptune Systems Apex Fluid Monitoring Module FMM - Image 1 of 3

    New Listing1 Neptune Systems Apex Fluid Monitoring Module FMM

    Pre-Owned · Neptune Systems
    C $110.22
    ⁣⁣⁣⁣9⁣⁣D⁣ ⁣⁣⁣⁣⁣⁣⁣P⁣⁣I⁣⁣⁣⁣⁣ ⁣⁣T⁣J⁣⁣ ⁣M⁣
  • Neptune Systems Apex ATK V2 ATO Magnet and Optical Sensors With Float Valve - Image 1 of 4

    New ListingNeptune Systems Apex ATK V2 ATO Magnet and Optical Sensors With Float Valve

    Pre-Owned · Neptune
    C $117.11
    ⁣⁣K⁣F⁣ ⁣⁣⁣⁣J⁣⁣⁣⁣N⁣ ⁣0⁣⁣⁣E⁣ ⁣N⁣J⁣⁣⁣ ⁣Y⁣Q⁣⁣ ⁣
  • Used Neptune Systems Apex DOS Dosing Pump And Fluid Metering System Mfg 2023 - Image 1 of 4

    New ListingUsed Neptune Systems Apex DOS Dosing Pump And Fluid Metering System Mfg 2023

    Pre-Owned · Neptune
    C $316.90
    ⁣C⁣⁣⁣T⁣⁣⁣ ⁣D⁣⁣5⁣ ⁣V⁣O⁣⁣ ⁣2⁣⁣⁣⁣4⁣ ⁣T⁣⁣J⁣ ⁣⁣4⁣
  • Neptune Systems Apex Trident Water Analyzer With New Reagent Kit Brand New - Image 1 of 4

    Neptune Systems Apex Trident Water Analyzer With New Reagent Kit Brand New

    Brand New · Neptune Systems
    C $826.73
    Only 1 left!
    ⁣8⁣V⁣ ⁣⁣7⁣⁣⁣⁣R⁣ ⁣⁣V⁣2⁣⁣⁣⁣⁣ ⁣4⁣⁣⁣⁣⁣P⁣ ⁣A⁣⁣
  • Neptune Systems Apex Lab Grade Ph And Orp Probe Mfg 2019 - Image 1 of 1

    Neptune Systems Apex Lab Grade Ph And Orp Probe Mfg 2019

    Pre-Owned · Neptune Systems
    C $96.44
    17 watching
    ⁣B⁣X⁣ ⁣E⁣⁣⁣V⁣⁣ ⁣⁣⁣E⁣⁣M⁣⁣ ⁣T⁣⁣O⁣ ⁣⁣1⁣⁣⁣⁣O⁣⁣
  • Pre Own Ozotech Model 31281-BK 1.5 115 Vac 60Hz Tested Working. - Image 1 of 4

    Pre Own Ozotech Model 31281-BK 1.5 115 Vac 60Hz Tested Working.

    Pre-Owned
    C $241.13
    C $50.05 shipping
    Y⁣6⁣⁣⁣ ⁣Q⁣T⁣⁣⁣ ⁣I⁣6⁣ ⁣⁣⁣A⁣⁣⁣0⁣ ⁣E⁣⁣⁣9⁣⁣⁣⁣ ⁣
  • Used Neptune Systems Apex DOS Dosing Pump And Fluid Metering System Mfg 2018 - Image 1 of 4

    New ListingUsed Neptune Systems Apex DOS Dosing Pump And Fluid Metering System Mfg 2018

    Pre-Owned · Neptune
    C $275.57
    ⁣⁣Q⁣⁣M⁣ ⁣U⁣P⁣ ⁣⁣⁣⁣0⁣V⁣ ⁣⁣6⁣⁣⁣I⁣ ⁣P⁣⁣V⁣⁣⁣⁣⁣
  • Apex Neptune Systems PM2 Salinity / Conductivity Module Black Label - Image 1 of 3

    New ListingApex Neptune Systems PM2 Salinity / Conductivity Module Black Label

    Pre-Owned · Neptune Systems
    C $89.55
    D⁣B⁣⁣ ⁣F⁣⁣C⁣ ⁣⁣⁣⁣P⁣⁣0⁣⁣⁣⁣⁣⁣⁣⁣ ⁣⁣⁣⁣N⁣⁣1⁣
  • EXO Auto Top Off ATO - Reef Breeders - Image 1 of 3

    EXO Auto Top Off ATO - Reef Breeders

    Brand New
    (2)
    C $68.88
    C $29.27 shipping
    Only 1 left!
    L⁣S⁣p⁣2⁣ ⁣o⁣T⁣G⁣n⁣ ⁣K⁣s⁣M⁣ ⁣Y⁣4⁣ ⁣о⁣r⁣e⁣d⁣X⁣M⁣ ⁣⁣⁣⁣I⁣
  • 2xAquarium Digital Thermometer LED Fish Tank Temperature Gauge with Touch Screen - Image 1 of 4

    2xAquarium Digital Thermometer LED Fish Tank Temperature Gauge with Touch Screen

    Brand New · Unbranded
    C $14.87
    Was: C $16.78was - C $16.78
    or Best Offer
    C $15.24 shipping
    128 sold
    C⁣D⁣S⁣ ⁣D⁣p⁣o⁣n⁣s⁣o⁣r⁣8⁣ ⁣е⁣8⁣d⁣⁣2⁣ ⁣⁣⁣⁣X⁣⁣Y⁣ ⁣⁣A⁣
  • 2x Covered Toggle 4x Push switch Apex Neptune breakout box with 24VDC alarm. - Image 1 of 4

    2x Covered Toggle 4x Push switch Apex Neptune breakout box with 24VDC alarm.

    Brand New
    C $172.24
    33 watching
    S⁣p⁣B⁣K⁣o⁣ ⁣n⁣ѕ⁣X⁣5⁣o⁣r⁣e⁣d⁣ ⁣⁣⁣M⁣G⁣⁣⁣⁣⁣⁣⁣ ⁣U⁣O⁣
  • Customizable Breakout Box 4x Lighted Toggle 2x Push Button for Apex Neptune - Image 1 of 4

    Customizable Breakout Box 4x Lighted Toggle 2x Push Button for Apex Neptune

    Brand New
    C $130.89
    or Best Offer
    10 watching
    M⁣N⁣S⁣ ⁣M⁣p⁣o⁣K⁣ ⁣n⁣7⁣X⁣s⁣о⁣ ⁣r⁣e⁣d⁣⁣⁣E⁣⁣O⁣⁣⁣ ⁣⁣2⁣
  • Aquarium Digital Thermometer Fish Tank Salt Water Terrarium - Image 1 of 1

    Aquarium Digital Thermometer Fish Tank Salt Water Terrarium

    Brand New
    C $8.67 to C $23.41
    C $15.49 shipping
    144 sold
    ⁣N⁣O⁣ ⁣V⁣C⁣ ⁣O⁣⁣⁣A⁣⁣ ⁣⁣A⁣J⁣⁣ ⁣R⁣6⁣⁣⁣ ⁣D⁣⁣⁣⁣ ⁣
  • NEPTUNE SYSTEMS EB832 Energy Bar 832 - Image 1 of 4

    New ListingNEPTUNE SYSTEMS EB832 Energy Bar 832

    Pre-Owned · Neptune Systems
    (2)
    C $206.69
    or Best Offer
    C $46.21 shipping
    0 bids
    4d 13h
    ⁣5⁣⁣⁣⁣L⁣ ⁣⁣G⁣⁣⁣⁣8⁣ ⁣0⁣J⁣⁣ ⁣Z⁣W⁣ ⁣⁣⁣J⁣5⁣⁣⁣ ⁣
  • OPEN BOX - New Milwaukee Instruments MC122 pH Controller, 115V - Image 1 of 3

    OPEN BOX - New Milwaukee Instruments MC122 pH Controller, 115V

    Brand New · Milwaukee
    (18)
    C $137.79
    Trending at C $172.20

    eBay determines this price through a machine-learned model of the product's sale prices within the last 90 days.

    ⁣⁣⁣⁣⁣Q⁣D⁣ ⁣⁣⁣F⁣⁣I⁣ ⁣V⁣T⁣ ⁣⁣⁣⁣⁣J⁣⁣G⁣ ⁣H⁣⁣⁣
  • Neptune Systems - ATK V2 Auto Top Off Kit (PRE-OWNED) - Image 1 of 4

    Neptune Systems - ATK V2 Auto Top Off Kit (PRE-OWNED)

    Pre-Owned · Neptune Systems
    C $234.24
    or Best Offer
    C $29.54 shipping
    10 watching
    ⁣5⁣9⁣ ⁣⁣C⁣⁣⁣⁣I⁣⁣ ⁣⁣5⁣E⁣⁣ ⁣T⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣N⁣
  • Used Neptune Systems Apex Temperature Probe Temp - Image 1 of 2

    Used Neptune Systems Apex Temperature Probe Temp

    Pre-Owned · Neptune Systems
    C $34.43
    54 sold
    ⁣⁣⁣⁣V⁣R⁣⁣ ⁣⁣⁣⁣H⁣⁣⁣8⁣⁣ ⁣⁣⁣W⁣X⁣ ⁣⁣⁣⁣⁣X⁣⁣
  • Hydros Launch Aquarium Controller - Image 1 of 3

    Hydros Launch Aquarium Controller

    Pre-Owned
    C $558.05
    C $69.32 shipping
    9 bids
    1d 10h
    8⁣Y⁣⁣ ⁣I⁣⁣⁣⁣⁣N⁣⁣⁣ ⁣⁣U⁣T⁣ ⁣D⁣7⁣ ⁣⁣⁣⁣Q⁣⁣⁣⁣⁣
  • Magnetic 4 Probe Holder 3 Standard 1 Enlarged for Apex Neptune Temperature Probe - Image 1 of 2

    Magnetic 4 Probe Holder 3 Standard 1 Enlarged for Apex Neptune Temperature Probe

    Brand New
    C $38.57
    or Best Offer
    146 sold
    S⁣p⁣o⁣n⁣1⁣ѕ⁣o⁣J⁣r⁣e⁣ ⁣d⁣N⁣Q⁣⁣⁣ ⁣0⁣3⁣⁣ ⁣K⁣⁣⁣M⁣⁣⁣⁣
  • Customizable Apex Neptune Breakout Box 2x Lighted Toggle Switches Push Terminal - Image 1 of 4

    Customizable Apex Neptune Breakout Box 2x Lighted Toggle Switches Push Terminal

    Brand New
    C $103.33
    or Best Offer
    26 watching
    B⁣W⁣ ⁣2⁣S⁣O⁣p⁣о⁣n⁣s⁣o⁣r⁣e⁣d⁣ ⁣⁣C⁣C⁣⁣⁣ ⁣⁣⁣⁣⁣⁣⁣E⁣
  • Neptune Systems Energy Bar 832 – Intelligent Power Strip for Apex Aquarium Contr - Image 1 of 4

    Neptune Systems Energy Bar 832 – Intelligent Power Strip for Apex Aquarium Contr

    Brand New
    C $420.25
    C $42.40 shipping
    Only 1 left!
    A⁣⁣⁣⁣⁣⁣0⁣ ⁣⁣0⁣⁣M⁣⁣ ⁣4⁣⁣⁣7⁣ ⁣Q⁣⁣6⁣⁣⁣ ⁣B⁣⁣⁣
  • HANNA HANNA HI9146-04 Smart Buy - Image 1 of 3

    HANNA HANNA HI9146-04 Smart Buy

    Brand New
    C $275.57
    or Best Offer
    C $28.49 shipping
    Only 1 left!
    ⁣3⁣X⁣ ⁣⁣⁣N⁣U⁣⁣⁣⁣⁣ ⁣M⁣J⁣⁣ ⁣⁣L⁣I⁣⁣ ⁣8⁣⁣Q⁣ ⁣⁣A⁣
  • GHL KH Director + Doser 2.1 Slave - Image 1 of 3

    GHL KH Director + Doser 2.1 Slave

    Pre-Owned
    C $792.29
    12 watching
    X⁣⁣O⁣ ⁣⁣⁣⁣⁣⁣⁣Z⁣⁣⁣⁣⁣6⁣ ⁣⁣V⁣T⁣⁣⁣⁣ ⁣X⁣⁣D⁣ ⁣
  • Ecotech Marine Reeflink Chip (Green Chip) - Image 1 of 1

    Ecotech Marine Reeflink Chip (Green Chip)

    Pre-Owned · EcoTech Marine
    C $35.00
    or Best Offer
    Free shipping
    4 watching
    X⁣O⁣ ⁣D⁣R⁣ ⁣⁣J⁣⁣9⁣⁣ ⁣U⁣X⁣ ⁣V⁣⁣1⁣ ⁣⁣⁣⁣⁣ ⁣⁣⁣⁣⁣
  • Neptune Systems Apex DOS Dosing & Fluid Metering System w/ DDR Dosing Reservoir - Image 1 of 4

    Neptune Systems Apex DOS Dosing & Fluid Metering System w/ DDR Dosing Reservoir

    Pre-Owned · Neptune Systems
    C $454.69
    C $43.51 shipping
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  • Milwaukee Instruments MC 122 Ph Meter - Image 1 of 4

    New ListingMilwaukee Instruments MC 122 Ph Meter

    Pre-Owned
    C $82.67
    or Best Offer
    C $58.01 shipping
    0 bids
    6d 10h
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  • Neptune PM2 Module - conductivity, temperature, and 6 digital inputs - Image 1 of 1

    Neptune PM2 Module - conductivity, temperature, and 6 digital inputs

    Brand New · Neptune Systems
    C $130.89
    C $18.67 shipping
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  • Neptune Systems Flow Sensor - 1" with unions - Image 1 of 1

    Neptune Systems Flow Sensor - 1" with unions

    Brand New · Neptune Systems
    C $90.93
    C $23.05 shipping
    18 watching
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  • Neptune ApexEL Base Unit - Image 1 of 1

    Neptune ApexEL Base Unit

    Pre-Owned · Neptune
    C $137.79
    C $41.53 shipping
    1 bid
    10h 21m
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  • Thermometer Adhesive Sticker Black LCD Flat Strip Window Fish Tank Aquarium - Image 1 of 4

    Thermometer Adhesive Sticker Black LCD Flat Strip Window Fish Tank Aquarium

    Brand New
    C $3.94 to C $21.87
    C $14.55 shipping
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  • HM Digital pH Electrode Storage Solution (60cc) - Image 1 of 1

    HM Digital pH Electrode Storage Solution (60cc)

    Brand New
    (7)
    C $13.71
    C $15.21 shipping
    Only 2 left
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  • Neptune systems energy bar 8 EB8 For Apex controller (Read Description) - Image 1 of 4

    Neptune systems energy bar 8 EB8 For Apex controller (Read Description)

    Pre-Owned · Neptune Systems
    C $151.56
    3 watching
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  • Coralvue HYDROS Control X10 Controller & Dosing System New NIB OPEN BOX - Image 1 of 3

    Coralvue HYDROS Control X10 Controller & Dosing System New NIB OPEN BOX

    Brand New
    C $998.98
    or Best Offer
    C $34.02 shipping
    10 watching
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  • REEFER Skimmer 600 ReefRun DC Pump Upgrade Kit (Excl. controller) - Red Sea - Image 1 of 2

    REEFER Skimmer 600 ReefRun DC Pump Upgrade Kit (Excl. controller) - Red Sea

    Brand New · Red Sea
    C $274.20
    C $31.98 shipping
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  • Neptune Systems Apex Trident Water Analyzer With New Reagent Kit - Image 1 of 4

    Neptune Systems Apex Trident Water Analyzer With New Reagent Kit

    Pre-Owned · Neptune Systems
    C $688.94
    C $52.15 shipping
    3 watching
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  • Neptune Systems Apex MXM Mobius Wireless Module with AquaBus USB Cable - Image 1 of 4

    Neptune Systems Apex MXM Mobius Wireless Module with AquaBus USB Cable

    Pre-Owned · Neptune Systems
    C $137.78
    C $24.43 shipping
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  • Neptune Systems A3 Apex System - Image 1 of 2

    Neptune Systems A3 Apex System

    Brand New · Neptune Systems
    C $868.06
    C $54.00 shipping
    2 watching
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  • Hydros Sole - Hydros - Image 1 of 4

    Hydros Sole - Hydros

    Brand New
    C $372.03
    or Best Offer
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  • American Marine Pinpoint ORP/REDOX Monitor - Image 1 of 3

    American Marine Pinpoint ORP/REDOX Monitor

    Pre-Owned
    C $68.90
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  • Customizable Apex Neptune Breakout Box 4 switches 2 push release connectors - Image 1 of 4

    Customizable Apex Neptune Breakout Box 4 switches 2 push release connectors

    Brand New
    C $55.10
    or Best Offer
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