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64
Senninger Pressure Master Regulator | Flow Range 2 - 20gpm - Preset Operating Pressure 15psi - Max Inlet Pressure 95psi - Inlet 3/4in NPT (F); 1in NPT (F) 1in BSPT (F) - Outlet ...
In Stock: 63
$28.84 $29.05 -1%
Senninger Pressure Master Regulator | Flow Range 2 - 20gpm - Preset Operating Pressure 40psi - Max Inlet Pressure 120psi - Inlet 3/4in NPT (F); 1in NPT (F); 1in BSPT (F) - Outle...
In Stock: 32
$28.84 $29.05 -1%
Milwaukee Instruments pH 600 pH Tester w/1 Point Manual Calibration
In Stock: 86
$28.80 $30.00 -4%
General Hydroponics pH Down Liquid - 1gal
In Stock: 1986
$28.50 $39.06 -27%
General Hydroponics pH Up Liquid - 1gal
In Stock: 2841
$28.50 $39.06 -27%
1/4" OD Black Tubing 100'
In Stock: 402
$27.94 $35.47 -21%
Milwaukee Instruments pH600 Digital pH Pen
In Stock: 247
$27.82 $29.00 -4%
EcoPlus ECO-264 Fixed Flow Submersible/Inline Pump - 290 GPH - 2.87 PSI
In Stock: 181
$27.65 $32.97 -16%
Active Aqua Air Stone, Round, 8" x 1"
In Stock: 301
$27.36 $31.49 -13%
Netafim Pressure Regulator | 3/4in - 35psi - 5-18gpm
In Stock: 12
$27.03 $35.10 -23%
Dramm Brass Shut-Off Valve | 17gpm - 3/4in Thread
In Stock: 261
$27.01 $29.96 -10%
Hanna 4.01 pH Buffer Solution | 500ml
In Stock: 17
$26.79 $26.99 -1%
Hanna 7.01 pH Buffer Solution | 500ml
In Stock: 11
$26.79 $26.99 -1%
Hanna EC Conductivity Calibration Solution | 1, 413 µS/cm
In Stock: 4
$26.79 $26.99 -1%
EZ Clone 360-Degree Replacement Mister, pack of 50
In Stock: 171
$26.21 $30.88 -15%
Hydro Systems Repair Kit A | For MiniDos 2.5% Viton
Out of stock
$26.08 $26.27 -1%
Hydrofarm Electronic Water Timer
In Stock: 1152
$26.07 $31.49 -17%
GrowoniX Eco White Coconut Carbon Filter | for EX400-T, Slim Scrub Systems - 6,000 Gallons of Pure RO Water or 17,000 Gallons of De-Chlorinated Water
Out of stock
$26.01 $38.15 -32%
Danner The Fountain Pump Statuary Pump with Barb Fittings | 120gph - Grounded Power Cord
In Stock: 65
$25.99 $39.99 -35%
AXEON SDF-45-2005 Sediment Filter 4.5" x 20"
Out of stock
$25.93 $31.35 -17%
Bluelab pH Probe KCl Storage Solution | 250ml
In Stock: 96
$25.86 $35.86 -28%
Hanna General-Purpose Cleaning Solution | 230ml
In Stock: 4
$25.45 $25.64 -1%
Hydro Systems O-Ring | 5.237 x 5.551 x 0.157 - Buna-N NBR
Out of stock
$25.41 $25.60 -1%
GrowoniX Quick Connect Float Valve with Quick-Connect | for 1/4in or 3/8in
In Stock: 1
$25.41 $33.39 -24%
Dramm Aluminum Shut-Off Valve | 3/4in Male-Female Thread
In Stock: 196
$25.29 $28.24 -10%
FloraFlex QDPS Multi Flow Bubbler, Elbow, 3/4"
In Stock: 31
$25.21 $33.21 -24%
FloraFlex QDPS Multi Flow Bubbler, T, 3/4"
In Stock: 30
$25.21 $33.21 -24%
Active Aqua Submersible Water Pump, 250 GPH
Out of stock
$25.21 $33.23 -24%
GrowoniX Spun Sediment Filter | for EX600-T, EX1000-T, XL Scrub, and Sedi Scrub Systems - 4.5in x 20in - Spun
Out of stock
$25.20 $37.09 -32%
Danner The Fountain Pump Statuary Pump with Barb Fittings | 93gph - Grounded Power Cord
In Stock: 28
$24.99 $37.99 -34%
Bluelab Probe Care Kit | for Bluelab pH Probes
In Stock: 6
$24.87 $34.48 -28%
HydroLogic Stealth-RO and smallBoy ChloraShield Replaceable Carbon Filter Upgrade - 1 GPM - 1 Micron
In Stock: 57
$24.74 $35.65 -31%
Hydro Flow Premium Vinyl Tubing - 100ft Roll - 3/16in ID - Black
In Stock: 129
$24.72 $29.40 -16%
AXEON R1 Series Sediment Filter, 5 Micron
In Stock: 51
$24.70 $31.35 -21%
FloraFlex Matrix, 10.5"-12", Pack of 12
In Stock: 25
$24.52 $58.99 -58%
FloraFlex QDPS Open Flow Bubbler, T, 3/4"
In Stock: 55
$24.41 $32.16 -24%
Cutting Edge Solutions pH Down | 1gal Bottle
Out of stock
$24.38 $33.99 -28%
Cutting Edge Solutions pH Up | 1gal Bottle
Out of stock
$24.38 $33.99 -28%
GroStar pH calibration kit (pH 4/7/10, 8 oz. each)
In Stock: 24
$24.00 $28.99 -17%
Bluelab Meter Carrying Case | Meter Not Included
In Stock: 176
$23.97 $29.08 -18%
Dramm Inline Filter | ILF-175 - 10gpm - 40psi
In Stock: 65
$23.88 $26.78 -11%
HydroLogic Stealth-RO Quick Connect Float Valve - 1/4in QC
In Stock: 126
$23.56 $28.46 -17%
HydroLogic Evolution-RO 1000 & TALLBoy Quick Connect Float Valve - 3/8in QC
In Stock: 785
$23.56 $28.46 -17%
HydroLogic Evolution-RO Barbed Float Valve - 1/2in
In Stock: 299
$23.56 $28.46 -17%
Danner The Fountain Pump Statuary Pump with Barb Fittings | 70gph - Grounded Power Cord
In Stock: 23
$22.99 $32.99 -30%
Hydro Systems Replacement Parts | 1in x 3/4in NPT - #8010024N
Out of stock
$22.79 $22.96 -1%
HM Digital TDS-3 Handheld TDS meter
In Stock: 35
$22.76 $33.99 -33%
Active Aqua Grow Flow Bottom-Draw Pump, 220 GPH
In Stock: 1795
$22.65 $27.35 -17%
Biobizz Bio-PH+ PH Regulator 1L pH UP
In Stock: 58
$22.20 $29.26 -24%
Danner Pondmaster Fountain-Mag Magnetic Drive Water Pump | 65gph - for larger Tabletop Fountains, Small Garden Fountains, Piped Statuary and Shallow Water Conditions
In Stock: 33
$22.19 $36.99 -40%
Active Aqua 1" Fill/Drain Fitting, pack of 10
In Stock: 139
$22.16 $26.55 -17%
Hydro Systems Dosage Piston #44 | #010044P
Out of stock
$21.98 $22.14 -1%
Hydro Systems Dosage Piston | 2.5% - Poly White - #010-044P
Out of stock
$21.96 $22.13 -1%
Luster Leaf Rapitest Light & Moisture Meter | Dual Tester
In Stock: 116
$21.74 $29.99 -28%
Biobizz Bio-PH- PH Regulator 1L pH DOWN
In Stock: 68
$21.74 $31.50 -31%
Dramm Plastic Syphonject w/External Check valve 12/CS
In Stock: 15
$21.65 $21.82 -1%
Dilution Solutions PH Calibration Solution | 20pcs
In Stock: 67
$21.47 $24.95 -14%
HydroLogic Poly Tubing - 50ft Roll - 3/8in - Blue
In Stock: 58
$21.31 $25.75 -17%
HydroLogic Poly Tubing - 50ft Roll - 3/8in - Black
In Stock: 52
$21.31 $25.75 -17%
Bluelab Conductivity Standard Solution | 500mL- 2.77 EC - Designed for Bluelab Products
In Stock: 137
$20.71 $28.73 -28%
Bluelab pH 4.0 Calibration Solutions | 500mL- Designed for Bluelab Products
In Stock: 102
$20.71 $28.73 -28%
Bluelab pH 7.0 Calibration Solutions | 500mL- Designed for Bluelab Products
In Stock: 165
$20.71 $28.73 -28%
Dramm #74 Full Flow Shut-Off Valve | 18gpm Ergonomic Grip
In Stock: 407
$20.61 $23.11 -11%
Dramm OneTouch High-Flow Valve | 16gpm
In Stock: 113
$20.56 $22.91 -10%
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