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Best Sellers

MC122 Ph Controller With Standard Plug Socket, Mil...
List Price: $334.49
Our Price: $222.99
(save $111.5, 33%)
Hard Carrying Case for Digital Meters
List Price: $29.99
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(save $10, 33%)
Milwaukee CO2 Regulator Needle / Solenoid Valve
List Price: $136.49
Our Price: $90.99
(save $45.5, 33%)
Hanna HI504214 pH ORP controller
List Price: $1049.99
Our Price: $699.99
(save $350, 33%)
MC122 Ph Controller With Standard Plug Socket, Mil...
List Price: $184.49
Our Price: $122.99
(save $61.5, 33%)
Kalkstar Kalkwasser Stirrer, Magnetic Stir Bar
List Price: $449.99
Our Price: $299.99
(save $150, 33%) 4
10 Lb. Aluminum Co2 Bottle, New
List Price: $179.99
Our Price: $119.99
(save $60, 33%)
DISCONTINUED - Media Melter 400 Calcium Reactor, A...
List Price: $581.99
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(save $194, 33%)
A.R.M. Coarse Calcium Reactor Media 1 Gallon, Cari...
List Price: $32.99
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(save $11, 33%)
Black handle for CO2 cylinders
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CO2 Controller (Air Tighten)
List Price: $182.99
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(save $61, 33%)
Aluminum CO2 Cylinder 1.0L
List Price: $106.49
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DISCONTINUED - Aqua Euro model 400 calcium reactor...
List Price: $404.24
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(save $134.75, 33%)
A.R.M. Extra Coarse Calcium Reactor Media 50 lbs.
List Price: $119.99
Our Price: $79.99
(save $40, 33%)
Replacement Pump Jet Stream Pico Calcium Reactor
List Price: $57.74
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(save $19.25, 33%)
BEM101 Ph Monitor Automatic Calibration, Milwaukee
List Price: $172.49
Our Price: $114.99
(save $57.5, 33%)
Mi805 pH/EC/TDS/Temp Portable 4 In 1 Meter
List Price: $499.49
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(save $166.5, 33%)
CO2 Controller (Mini Gauge - Vertical)
List Price: $182.99
Our Price: $121.99
(save $61, 33%)
20 Lb. Aluminum Co2 Bottle, New
List Price: $194.99
Our Price: $129.99
(save $65, 33%)
Aluminum CO2 Cylinder 2.0L
List Price: $178.49
Our Price: $118.99
(save $59.5, 33%)