Controllers & Water Testing Deals

3 Reviews

Hanna Instruments
HIREEF2 Professional Reef Test Kit
$254.99 $299.99
5 Reviews

Hanna Instruments
Marine Monitor (pH/Salinity/Temperature)
$254.99 $299.99
10 Reviews

Hanna Instruments
Marine Master Bluetooth Multiparameter Photometer HI97115
$403.74 $474.99
1 Review

Apogee
MQ-210X Original Underwater Quantum PAR Meter
$360.60 $400.67
115 Reviews

Hanna Instruments
Alkalinity DKH Colorimeter HI772 Hanna Checker - Marine Water
$57.79 $67.99
32 Reviews

Hanna Instruments
Phosphate Ultra Low Range PPM Colorimeter HI774 Hanna Checker - Marine Water
$57.79 $67.99
9 Reviews

Hanna Instruments
Copper High Range Colorimeter HI702 Hanna Checker
$57.79 $67.99
36 Reviews

Hanna Instruments
Nitrate High Range Colorimeter HI782 - Marine Water
$57.79 $67.99
12 Reviews

Hanna Instruments
Marine pH Colorimeter HI780 Hanna Checker
$57.79 $67.99
17 Reviews

Hanna Instruments
Marine Magnesium Colorimeter HI783
$57.79 $67.99
5 Reviews

Hanna Instruments
Marine Ammonia Colorimeter HI784
$57.79 $67.99
12 Reviews

Triton
1-Pack ICP-OES Testing Kit
$41.65 $49.00
Salifert
Salifert Potassium Aquarium Test Kit
$15.99 $18.81
$Refractometer Calibration Solution$

13 Reviews

Bulk Reef Supply
Refractometer Calibration Solution
$6.79 $7.99
2 Reviews

Xp Aqua
Sumpless ATO2 Auto Top Off System
$135.99 $169.99
Hanna Instruments
HI783-25 Marine Magnesium Reagents (25 Pack)
$21.24 $24.99
NT Labs
Marine Lab Ammonia Test Kit
$11.87 $13.96
15 Reviews

Bulk Reef Supply
Double Junction Lab Grade pH Probe
$76.49 $89.99
113 Reviews

Salifert
Salifert Calcium Aquarium Test Kit
$15.99 $18.81
68 Reviews

Hanna Instruments
HI98319 Marine Salinity Tester
$76.49 $89.99
31 Reviews

AutoAqua
Smart Stir - Magnetic Stirrer for Test Kits
$26.39 $32.99
$MA887 Digital Seawater Refractometer - Milwaukee$

139 Reviews

Milwaukee Instruments
MA887 Digital Seawater Refractometer - Milwaukee
$152.00 $152.00
26 Reviews

Salifert
Flatworm Exit Aquarium Treatment
$14.44 $16.99
9 Reviews

Apogee
MQ-510 Full Spectrum Underwater LED PAR Meter
$518.19 $575.77
22 Reviews

Salifert
Salifert Phosphate Aquarium Test Kit
$16.67 $19.61
1 Review

Vivid Creative Aquatics
Sample Water Filter Pod (SWF-POD)
$19.51 $22.95
Vivid Creative Aquatics
SWF-POD Accessory Pack
$8.46 $9.95
Bulk Reef Supply
Double Junction Lab Grade ORP Probe
$80.74 $94.99
7 Reviews

Glentronics
Watchdog Leak Detection Alarm
$13.59 $15.99
11 Reviews

Vivid Creative Aquatics
Salinity Probe Stability Kit (SPS)
$23.76 $27.95
20 Reviews

Salifert
Salifert Ammonia Aquarium Test Kit
$12.74 $14.99
Triton
3-Pack ICP-OES Testing Kit
$119.85 $141.00

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Triton
6-Pack ICP-OES Testing Kit
$229.50 $270.00

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7 Reviews

Hanna Instruments
Single HI70024P 35ppt Salinity Calibration Sachet
$1.12 $1.32
35 Reviews

Hanna Instruments
HI772-26 Alkalinity Checker Reagents - Hanna
$15.29 $17.99
8 Reviews

Hanna Instruments
HI782-25 Nitrate HR Checker Reagents - Hanna
$21.24 $24.99
7 Reviews

Hanna Instruments
HI774-25 Phosphate ULR Reagents - Marine Water
$15.29 $17.99
21 Reviews

Hanna Instruments
HI758-26 Calcium Checker Reagents - Marine Water
$25.49 $29.99
62 Reviews

Hanna Instruments
HI713-25 Phosphate Checker Reagents - Marine & Fresh Water
$15.29 $17.99
15 Reviews

Hanna Instruments
HI736-25 Phosphorus ULR Reagents - Marine Water
$15.29 $17.99
73 Reviews

Salifert
Salifert Magnesium Aquarium Test Kit
$16.67 $19.61
164 Reviews

Hanna Instruments
Calcium Colorimeter HI758 Hanna Checker - Marine Water
$57.79 $67.99
85 Reviews

Salifert
Salifert kH/Alkalinity Aquarium Test Kit
$13.99 $16.46
8 Reviews

Hanna Instruments
Cuvettes & Caps (2-Pack) - Hanna
$12.74 $14.99
2 Reviews

Hanna Instruments
HI702-25 Copper High Range Reagents (25 Pack)
$15.29 $17.99
260 Reviews

Hanna Instruments
Phosphate Low Range Colorimeter HI713 Hanna Checker - Fresh & Marine Water
$57.79 $67.99
39 Reviews

Salifert
Salifert Nitrate Aquarium Test Kit
$14.76 $17.37
3 Reviews

Hanna Instruments
HI764-25 Nitrite ULR Reagents for HI764 Checker - Marine Water
$15.29 $17.99
Hanna Instruments
HI784-25 Marine Ammonia Reagents (25 Pack)
$21.24 $24.99
Hanna Instruments
Single 1mL Graduated Syringe HI740142P
$2.13 $2.50
4 Reviews

American Marine Inc.
PINPOINT ORP (Redox) 400 Calibration Fluid
$3.40 $4.00
1 Review

AutoAqua
Smart ATO Replacement DC Pump
$23.92 $29.90
31 Reviews

Xp Aqua
RO/DI Flood Guardian
$55.99 $69.99
Hanna Instruments
HI780-25 Marine pH Checker HC Reagents (100 Tests)
$21.24 $24.99
11 Reviews

Bulk Reef Supply
Float Switch - Vertical Mount
$9.34 $10.99
9 Reviews

Hanna Instruments
Nitrite Ultra Low Range Colorimeter HI764 Hanna Checker - Marine Water
$57.79 $67.99
2 Reviews

Salifert
pH Aquarium Test Kit
$10.11 $11.89
1 Review

Ink Bird
Replacement Probe for Aquarium Temperature Controllers
$7.64 $8.99
5 Reviews

Milwaukee Instruments
Milwaukee MC120 pH Monitor
$116.65 $116.65
1 Review

Hanna Instruments
HI774-11 ULR Phosphate Standards for HI774 Hanna Checker
$16.14 $18.99
40 Reviews

Hanna Instruments
Phosphorus Ultra Low Range Colorimeter HI736 Hanna Checker - Marine Water
$57.79 $67.99
PolypLab
Scope Blue LED Flashlight
$22.49 $24.99
17 Reviews

American Marine Inc.
PINPOINT pH Replacement Probe
$42.49 $49.99
NT Labs
Marine Lab Reef Multi-Test Kit
$50.73 $59.68
NT Labs
Marine Lab Multi-Test Kit
$39.93 $46.98
14 Reviews

Apogee
USB Smart Quantum SQ-420X PAR Sensor
$240.09 $266.77
172 Reviews

Hanna Instruments
Alkalinity PPM Colorimeter HI755 Hanna Checker - Marine Water
$57.79 $67.99
9 Reviews

Hanna Instruments
Hanna Glass Cuvette Set HI731321 (4 Piece)
$25.49 $29.99
3 Reviews

AutoAqua
Smart Skimmer Security
$47.99 $59.99
8 Reviews

Salifert
Salifert Silicate Aquarium Test Kit
$14.44 $16.99
NT Labs
Marine Lab Phosphate Test Kit
$12.95 $15.23
3 Reviews

Salifert
Salifert Nitrite Aquarium Test Kit
$10.08 $11.86
4 Reviews

Hanna Instruments
HI758-11 Marine Calcium Calibration Check Set for HI758 Checker
$21.24 $24.99
3 Reviews

Hanna Instruments
HI98108 Waterproof pHep+ Pocket Tester
$59.49 $69.99
1 Review

Triton
1-Pack N-DOC Organics Seawater Analysis
$39.20 $49.00
15 Reviews

American Marine Inc.
PINPOINT Salinity Calibration Fluid
$9.17 $10.79
15 Reviews

Milwaukee Instruments
Milwaukee MC122 pH Controller
$174.40 $174.40
$Replacement LED Cover for Refractometers$

5 Reviews

Bulk Reef Supply
Replacement LED Cover for Refractometers
$4.24 $4.99
3 Reviews

Bulk Reef Supply
BRS pH/ORP Probe Tip Soaker Bottle
$5.94 $6.99
3 Reviews

Hanna Instruments
HI731339P Graduated Pipette
$25.49 $29.99
4 Reviews

Salifert
Salifert Copper Aquarium Test Kit
$15.21 $17.89
NT Labs
Marine Lab Calcium Test Kit
$14.03 $16.50
Reef Factory
pH Probe Cleaning Solution
$4.67 $5.49
NT Labs
Marine Lab Magnesium Test Kit
$12.95 $15.23
5 Reviews

Bulk Reef Supply
Float Switch - Horizontal Mount
$13.59 $15.99
NT Labs
Marine Lab Nitrate Test Kit
$11.87 $13.96
Tropic Marin
Reagent Refill for Pro Nitrite and Nitrate Test Kit
$27.82 $32.73
NT Labs
Marine Lab KH (Alkalinity) Test Kit
$10.79 $12.69
1 Review

Reef Factory
Smart tester Phosphate Reagent Cartridges
$22.52 $26.49
7 Reviews

Hanna Instruments
HI755-11 Marine Alkalinity Calibration Check Set for HI755 Checker
$16.14 $18.99
Hanna Instruments
Hanna General Purpose Cleaning Solution HI7061L 500 mL
$16.99 $19.99
Hanna Instruments
Cuvette Cleaning Solution HI93703-50 230 mL
$29.74 $34.99
3 Reviews

Bulk Reef Supply
Single Junction Lab Grade pH Probe
$42.49 $49.99
3 Reviews

P3 International
Save a Watt P4472 Digital Timer
$29.71 $34.95
4 Reviews

Reef Factory
Smart tester Automated Testing Device
$521.04 $612.99
NT Labs
Aquarium Lab Multi-Test Kit
$39.93 $46.98
2 Reviews

AutoAqua
Smart Auto Water Changer Lite
$159.99 $199.99
1 Review

NT Labs
Marine Lab pH Test Kit
$10.79 $12.69
1 Review

Tropic Marin
Pro Nitrite and Nitrate Test Kit
$27.82 $32.73
2 Reviews

Reef Factory
Thermo control Smart Temperature Controller
$148.74 $174.99
1 Review

HM Digital
PH-200 Waterproof pH Meter
$67.99 $79.99
NT Labs
Marine Lab Nitrite Test Kit
$10.79 $12.69
Reef Factory
Thermo view Temperature Monitor
$90.94 $106.99
3 Reviews

Milwaukee Instruments
Milwaukee MC510 ORP Controller
$188.30 $188.30
Reef Factory
Level keeper Auto Top Off System
$132.59 $155.99
Reef Factory
KH keeper Plus Mixing Pill
$2.37 $2.79
20 Reviews

American Marine Inc.
PINPOINT pH Monitor
$80.74 $94.99
Reef Factory
pH meter
$206.54 $242.99
Reef Factory
KH keeper Ready-to-Use Reagent (5L)
$41.64 $48.99
Adaptive Reef
Aquarium Controller Board Small Cord Cutout Plugs - White
$16.09 $22.99
Reef Factory
Salinity guardian Salinity Monitor
$267.74 $314.99
11 Reviews

Tunze
2 Channel Apex to Tunze Stream Cable - Neptune Systems
$18.69 $21.99
Adaptive Reef
Aquarium Controller Board 3 FT Power Cord Accessory
$7.69 $10.99
Reef Factory
KH keeper Plus Glass Beaker
$5.94 $6.99
14 Reviews

Tunze
RO Water Controller
$220.99 $259.99
4 Reviews

Tropic Marin
Compact Lab - Essentials Test Kit
$54.09 $63.64
6 Reviews

Reef Factory
KH keeper Plus
$656.19 $771.99
1 Review

Milwaukee Instruments
MC125 pH/ORP Controller Combo
$270.70 $270.70
Reef Factory
Salinity guardian 35ppt Calibration Liquid
$6.37 $7.49
7 Reviews

Tunze
Water Valve 8555.200
$110.49 $129.99
Reef Factory
TDS meter Plus
$95.19 $111.99
NT Labs
Hardness Test Kit
$9.71 $11.42
Reef Factory
Dosing Pump Large
$206.54 $242.99
2 Reviews

Hanna Instruments
Low Range pH/Conductivity/TDS Combo Pen HI98129 - Hanna
$178.49 $209.99
Adaptive Reef
Deluxe Aquarium Controller Board Large Cord Cutout Plugs - White
$11.19 $15.99
Reef Factory
pH 7 Calibration Liquid
$5.94 $6.99
Reef Factory
KH keeper Plus Maintenance Kit
$25.93 $30.50
Reef Factory
pH 4 Calibration Liquid
$5.94 $6.99
NT Labs
Nitrate Test Kit
$8.63 $10.15
Reef Factory
Probes Multi holder
$25.49 $29.99
Reef Factory
Reef Factory Salinity guardian Probe
$153.42 $180.49
NT Labs
Ammonia Test Kit
$9.71 $11.42
NT Labs
Nitrite Test Kit
$8.63 $10.15
Reef Factory
Reef Factory pH Probe
$96.89 $113.99
NT Labs
Narrow pH Test Kit
$8.63 $10.15
Reef Factory
Level sensor
$57.79 $67.99
NT Labs
Broad pH Test Kit
$8.63 $10.15
23 Reviews

American Marine Inc.
PINPOINT pH High Precision Calibration Fluid
From: $1.18

Choose Options Notify Me When In-Stock
4 Reviews

Apogee
SQ-520 Full Spectrum Smart Quantum LED PAR Sensor
$409.50 $455.00
$Refractometer & Hydrometer Calibration Standard$

4 Reviews

Brightwell Aquatics
Refractometer & Hydrometer Calibration Standard
From: $4.73

Choose Options Notify Me When In-Stock
Hanna Instruments
Deionized Water
From: $16.14

Choose Options Notify Me When In-Stock
$LED Refractometer for Reading Salinity with Calibration Fluid$

19 Reviews

Bulk Reef Supply
LED Refractometer for Reading Salinity with Calibration Fluid
$33.99 $39.99

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5 Reviews

Hanna Instruments
25-Pack HI70024P 35ppt Salinity Calibration Sachet
$22.95 $27.00

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Adaptive Reef
Faceplates for Controller Cabinet (V1)
From: $15.00

Choose Options Notify Me When In-Stock
Adaptive Reef
Ecotech Marine Logo Board
From: $21.00

Choose Options Notify Me When In-Stock
Adaptive Reef
BRStv Logo Board
From: $21.00

Choose Options Notify Me When In-Stock
2 Reviews

Bulk Reef Supply
Thomas' Favorite Test Kits Bundle
$237.99 $279.99

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Reef Factory
KH keeper Concentrated Reagent
From: $41.64

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NT Labs
Aquarium Water Mini Test Kit
$19.42 $22.85
1 Review

AvidAqua
Wyze Camera Mount Add-On
$12.71 $14.95
4 Reviews

AvidAqua
Wyze Camera Aquarium Mount Kit
$33.96 $39.95
1 Review

AvidAqua
MPO Duo - Magnetic Probe Organizer
$33.96 $39.95
3 Reviews

AvidAqua
MPO Quatro - Magnetic Probe Organizer
$38.21 $44.95
AvidAqua
MTO - Magnetic Tubing Organizer
$38.21 $44.95
Reef Factory
Power switcher X4
$84.99 $99.99
AvidAqua
AvidCam Camera Mount Kit
$33.96 $39.95
AvidAqua
AvidCam Camera Mount Accessory
$12.71 $14.95

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