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General Hydroponics pH Down Liquid - 1gal
In Stock: 3386
$28.91 $39.06 -26%
General Hydroponics pH Up Liquid - 1gal
In Stock: 3749
$28.91 $39.06 -26%
Dramm Aluminum Shut-Off Valve | 3/4in Male-Female Thread
In Stock: 196
$28.90
Milwaukee Instruments pH600 Digital pH Pen
In Stock: 238
$28.85 $29.00 -1%
EcoPlus ECO-264 Fixed Flow Submersible/Inline Pump - 290 GPH - 2.87 PSI
In Stock: 178
$28.67 $32.97 -13%
Dramm Inline Filter | ILF-175 - 10gpm - 40psi
In Stock: 65
$28.59
Netafim Black Polyethylene Tubing | .75in - .82in Diam - Black - 100ft per Roll
In Stock: 4
$28.36 $36.66 -23%
Hanna 4.01 pH Buffer Solution | 500ml
In Stock: 17
$27.99
Hanna 7.01 pH Buffer Solution | 500ml
In Stock: 11
$27.99
Hanna EC Conductivity Calibration Solution | 1, 413 µS/cm
In Stock: 4
$27.99
Hydro Systems Repair Kit A | For MiniDos 2.5% Viton
Out of stock
$27.24
Bluelab pH Probe KCl Storage Solution | 250ml
In Stock: 253
$27.19 $35.86 -24%
Bluelab Probe Care Kit | for Bluelab pH Probes
In Stock: 22
$27.13 $34.48 -21%
Active Aqua Air Stone, Round, 8" x 1"
In Stock: 295
$27.10 $31.49 -14%
Cutting Edge Solutions pH Down | 1gal Bottle
Out of stock
$26.59 $33.99 -22%
Cutting Edge Solutions pH Up | 1gal Bottle
Out of stock
$26.59 $33.99 -22%
EZ Clone 360-Degree Replacement Mister, pack of 50
In Stock: 207
$26.59 $30.88 -14%
Hydro Systems O-Ring | 5.237 x 5.551 x 0.157 - Buna-N NBR
Out of stock
$26.54
Hydrofarm Electronic Water Timer
In Stock: 1147
$26.45 $31.49 -16%
AXEON SDF-45-2005 Sediment Filter 4.5" x 20"
Out of stock
$26.31 $31.35 -16%
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