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Best Sellers

Hard Carrying Case for Digital Meters
List Price: $29.99
Our Price: $19.99
(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%)
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%)
A.R.M. Coarse Calcium Reactor Media 1 Gallon, Cari...
List Price: $32.99
Our Price: $21.99
(save $11, 33%)
CO2 O-Ring Washer 3 Pack
List Price: $8.99
Our Price: $4.99
(save $4, 44%)
Aluminum CO2 Flow Regulator
List Price: $40.49
Our Price: $26.99
(save $13.5, 33%)
5 Lb. Aluminum Co2 Bottle, New
List Price: $119.99
Our Price: $79.99
(save $40, 33%)
Coral Vue Octopus Dual 6-1/2-Inch Chamber
List Price: $494.99
Our Price: $329.99
(save $165, 33%)
A.R.M. Extra Coarse Calcium Reactor Media 50 lbs.
List Price: $119.99
Our Price: $79.99
(save $40, 33%)
BEM802 Ph, Ec, Tds 3 In 1 Smart Digital Combinatio...
List Price: $247.49
Our Price: $164.99
(save $82.5, 33%)
Mi105 pH Portable Meter
List Price: $529.49
Our Price: $352.99
(save $176.5, 33%)
Portable pH Monitor Manual Calibration, Milwaukee ...
List Price: $107.99
Our Price: $71.99
(save $36, 33%)
CO2 O Ring Washer 4 Pack
List Price: $4.49
Our Price: $2.99
(save $1.5, 33%)
Precise CO2 Pressure Regulator
List Price: $74.99
Our Price: $49.99
(save $25, 33%)
20 oz CO2 Cylinder (Paintball Style)
List Price: $64.34
Our Price: $42.89
(save $21.45, 33%)