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Best Sellers

Hard Carrying Case for Digital Meters
List Price: $29.99
Our Price: $19.99
(save $10, 33%)
Hanna HI504214 pH ORP controller
List Price: $1049.99
Our Price: $699.99
(save $350, 33%)
Milwaukee CO2 Regulator Needle / Solenoid Valve
List Price: $136.49
Our Price: $90.99
(save $45.5, 33%)
MC122 Ph Controller With Standard Plug Socket, Mil...
List Price: $184.49
Our Price: $122.99
(save $61.5, 33%)
MC122 Ph Controller With Standard Plug Socket, Mil...
List Price: $334.49
Our Price: $222.99
(save $111.5, 33%)
Kalkstar Kalkwasser Stirrer, Magnetic Stir Bar
List Price: $449.99
Our Price: $299.99
(save $150, 33%) 4
Black handle for CO2 cylinders
List Price: $44.99
Our Price: $29.99
(save $15, 33%)
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%)
CO2 Regulator (Paintball Style), Red Sea
List Price: $155.09
Our Price: $103.39
(save $51.7, 33%)
Aluminum CO2 Cylinder .82L
List Price: $98.99
Our Price: $65.99
(save $33, 33%)
DISCONTINUED - Aqua Euro model 400 calcium reactor...
List Price: $404.24
Our Price: $269.49
(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%)
1/4 Pvc Globe Pattern Needle Valve Thd
List Price: $77.39
Our Price: $51.59
(save $25.8, 33%)
ORP Meter, Milwaukee BEM500
List Price: $175.49
Our Price: $116.99
(save $58.5, 33%)
MC510 ORP Smart Controller, Milwaukee
List Price: $206.99
Our Price: $137.99
(save $69, 33%)
Mi806 pH/EC/TDS/Temp Portable 4 In 1 Meter
List Price: $499.49
Our Price: $332.99
(save $166.5, 33%)
CO2 Controller (Air Tighten)
List Price: $182.99
Our Price: $121.99
(save $61, 33%)
Aluminum CO2 Cylinder 1.0L
List Price: $106.49
Our Price: $70.99
(save $35.5, 33%)