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128
1.25" Digital Flow Meter
In Stock: 10
$104.99 $110.25 -5%
EcoPlus Eco Air 5 Commercial Air Pump - 1,300 GPH - 1 Outlet
In Stock: 26
$104.92 $136.29 -23%
DAB ESYCOVER Kit | Green - For ESYBOX Mini 3 Models - NEMA 3
Out of stock
$103.35 $123.03 -16%
HydroLogic PreEvolution KDF Catalytic Carbon Filter
In Stock: 49
$102.98 $129.35 -20%
3/4" ID Black Tubing 100'
In Stock: 132
$102.14 $125.89 -19%
GroStar GS1 pH Pen
In Stock: 286
$101.91 $115.99 -12%
Bluelab Connect Range Extender | for Bluelab Connect Devices and Connect Stick
In Stock: 11
$100.96 $202.71 -50%
1" Digital Flow Meter
In Stock: 12
$99.39 $103.95 -4%
Bluelab Connect Stick 2 | for Bluelab Connect Devices
In Stock: 170
$97.70 $147.11 -34%
Alchemist™ H2O2 Liquid Oxygen - 5gal (OR)
Out of stock
$97.09 $135.16 -28%
Dilution Solutions Pro HM Digital pH Meter | 7.3in x 1.3in x 1.3in
In Stock: 7
$96.60 $99.95 -3%
Atlantic Mag Drive Pump | 250gph - 20ft cord - 3/4in to 1in Step Outlet
Out of stock
$96.02 $136.99 -30%
GroStar GS3 EC Pen
In Stock: 97
$95.75 $113.99 -16%
Bluelab Combo Meter pH Replacement Probe | pH probe
In Stock: 413
$95.48 $126.85 -25%
2-in-1 EC + Temp Sensor for Reservoir
In Stock: 9
$95.19 $100.28 -5%
Cutting Edge Solutions pH Down, 1 gal, case of 4
In Stock: 60
$95.08 $135.96 -30%
Cutting Edge Solutions pH Up, 1 gal, case of 4
In Stock: 46
$95.08 $135.96 -30%
HydroLogic BIGboy Green Coconut Carbon Filter - 7 GPM - 5 Micron Filtration
In Stock: 162
$94.61 $112.68 -16%
Dosatron Y Filter Kit | 1in - 200 Mesh/80 Micron Screen - for Dosatron Injector Model D45RE
In Stock: 13
$93.74
HydroLogic Evolution-RO 1000 Wall Mount Bracket - Stainless Steel
In Stock: 14
$93.46 $111.32 -16%
Aptus PCS P-50 Pot Base
Out of stock
$92.78 $102.19 -9%
Milwaukee Instruments EC40 PRO EC/TDS Nutrient Meter
In Stock: 95
$92.23 $95.00 -3%
EcoPlus ECO-1056 Fixed Flow Submersible/Inline Pump - 1,000 GPH - 3.99 PSI
In Stock: 70
$91.86 $114.50 -20%
Hydro Systems Replacement Parts Kit D | For A30, DP30 & SuperDos 30
Out of stock
$91.59
HydroLogic PreEvolution ChloraShield Replaceable Carbon Filter Upgrade - 1 GPM - 1 Micron
In Stock: 31
$91.20 $108.60 -16%
Dilution Solutions Flow Restrictors 3/4 in
Out of stock
$90.51
Dilution Solutions Flow Restrictor, 3/4 in 14 GPM (D14 Series)
Out of stock
$90.51
Active Aqua Commercial Air Pump, 12 Outlets, 112W, 110 L/min
In Stock: 508
$90.37 $104.50 -14%
Biobizz Bio-PH- PH Regulator 5L pH DOWN
In Stock: 7
$90.00 $126.76 -29%
Danner Pondmaster Promotion Pump & Fountain Kit | 190gph
In Stock: 1
$89.76 $131.99 -32%
Rusco Spin-Down Cover | Clear - 2in
Out of stock
$88.68
EcoPlus Convertible Bottom Draw Water Pump - 730 GPH
In Stock: 57
$85.44 $106.78 -20%
Hydro Systems Kit D | For Viton - 1/4in - Suction
Out of stock
$84.50
HydroLogic Evolution-RO 1000 Fitting Kit
In Stock: 7
$84.38 $87.86 -4%
HydroLogic BIGboy Replacement PVC Float Valve - 3/4in
In Stock: 56
$84.35 $100.45 -16%
Biobizz Bio-PH+ PH Regulator 5L pH UP
In Stock: 7
$83.57 $117.70 -29%
Danner The Fountain Pump Statuary Pump with Barb Fittings | 530gph - 9ft Max Pumping Height - Includes : 1/2in, 5/8in and 3/4in Tubing Adapters - Grounded Power Cord
In Stock: 3
$82.67 $126.99 -35%
pH Sensor for Reservoir
In Stock: 15
$82.59 $88.20 -6%
Polyester Element for Spin-Down Sediment Filters | 2in - 140 Mesh
Out of stock
$82.05
Aeromixer Aerobuddy Timer + Power Controller
In Stock: 39
$81.90
Active Aqua Submersible Water Pump, 1100 GPH
In Stock: 311
$80.13 $102.63 -22%
Dosatron Mini Maintenance Seal Kit Doser 14GPM
In Stock: 3
$78.64
Danner The Fountain Pump Statuary Pump with Barb Fittings | 400gph - 8.5ft Max Pumping Height - Includes : 1/2in, 5/8in and 3/4in Tubing Adapters - Grounded Power Cord
In Stock: 2
$78.53 $120.99 -35%
EcoPlus Eco Air 8 Adjustable Air Pump - 380 GPH - 8 Outlet
In Stock: 24
$78.44 $95.15 -18%
Active Aqua Commercial Air Pump, 8 Outlets, 60W, 70 L/min
In Stock: 249
$77.38 $92.12 -16%
Hydrofarm Active Aqua Commercial Air Pump | 12 Outlet - 110 Liters/Minute
In Stock: 2
$76.98 $174.99 -56%
Netafim Electric Valves | 0.75in - 24V - Threaded
In Stock: 38
$76.93 $79.26 -3%
Netafim Electric Valves | 1in - 24V - Threaded
In Stock: 72
$76.93 $79.26 -3%
HM Digital HydroMaster Portable/Wall Mount/Bench Continuous pH/EC/TDS/Temp
Out of stock
$76.32 $359.00 -79%
Leader ECOSUB 420 Multi-Purpose Submersible Pump | 1/2 HP - 3,960 GPH
Out of stock
$76.21 $182.55 -58%
EcoPlus Eco Air 3 Commercial Air Pump - 1,030 GPH - 1 Outlet
In Stock: 88
$75.66 $91.28 -17%
HydroLogic TALLBoy KDF85 Catalytic Carbon Filter Upgrade
In Stock: 33
$75.46 $84.95 -11%
Dosatron Seal Kit | for Dosatron Injector Model D8R
In Stock: 7
$75.29
Dosatron By-Pass Switch | for Dosatron Injector Model D14MZ2
In Stock: 5
$75.18
Hydro Flow Premium Vinyl Tubing - 50ft Roll - 1in ID - Black
In Stock: 45
$74.54 $83.61 -11%
Danner The Fountain Pump Statuary Pump with Barb Fittings | 290gph - Retail Boxed - 6ft Max Pumping Height - Includes : 1/2in, 5/8in and 3/4in Tubing Adapters - 15ft Power Cord
In Stock: 4
$74.52 $109.99 -32%
HydroLogic Evolution-RO ChloraShield Replaceable Carbon Filter Upgrade - 1 GPM - 1 Micron
In Stock: 103
$74.09 $83.95 -12%
Active Aqua Dual Diaphragm Air Pump
In Stock: 5
$73.77 $103.94 -29%
Dosatron Mini Maintenance Kit | for Dosatron Injector Model D14MZ2
In Stock: 14
$73.39
Hydro Systems Inner Cylinder #7 | #194404P
Out of stock
$72.65
Hydro Systems Replacement Inner Cylinder | 2.5% - #194404P
Out of stock
$72.63
Dilution Solutions HM Digital Meter | 7.3in x 1.3in x 1.3in
Out of stock
$72.44 $74.95 -3%
Hydro Systems Replacement Parts | For MiniDos - Outer Cylinder
Out of stock
$69.97
HydroLogic Evolution-RO 1000 Filter Housing
In Stock: 13
$69.64 $72.50 -4%
HydroLogic BIGboy Sediment Filter - Pleated - Cleanable
In Stock: 191
$69.51 $82.79 -16%
EcoPlus Convertible Bottom Draw Water Pump - 585 GPH
In Stock: 30
$69.40 $87.31 -21%
Netafim Black Polyethylene Tubing | 16mm - 0.52in Diam - Black - 500ft per Roll
In Stock: 24
$68.39 $87.09 -21%
Blumat Digital Moisture Meter | 12in
Out of stock
$68.05 $85.99 -21%
5/8" ID Black Tubing 100'
Out of stock
$67.42 $80.29 -16%
Active Aqua Submersible Water Pump, 800 GPH
In Stock: 1518
$67.41 $86.30 -22%
GroStar GS4-E replacement pH/EC combo electrode
In Stock: 88
$67.19 $79.99 -16%
EZ Clone Replacement Water Pump (Mag 750) , 700 GPH
In Stock: 74
$66.71 $77.49 -14%
EcoPlus ECO-633 Fixed Flow Submersible/Inline Pump - 594 GPH - 3.94 PSI
In Stock: 79
$63.39 $78.96 -20%
Hydro Systems Repair Kit D | For MiniDos 2.5% Viton
Out of stock
$63.38
Netafim Pressure Regulator | 1.5in - 12psi - 11-35gpm
In Stock: 3
$62.66 $84.50 -26%
Danner Pondmaster Fountain-Mag Magnetic Drive Water Pump | 190gph - for Small to Medium Size Fountains, Piped Statuary, and Small Ponds
In Stock: 1
$60.42 $79.99 -24%
Dosatron Dilution Solutions Filter Kit | For Dosatron Systems - 200 Mesh (80 micron) Filter - 0.75in - 0.79gpm
In Stock: 21
$59.92
Active Aqua Grow Flow 2.0 Expansion Kit w/six 5 gal Square Pots
In Stock: 768
$58.55 $123.72 -53%
Hydro Systems Advantage Connection Kit | 1in NPT x MHT - #011-054
Out of stock
$57.67
Hydro Systems Ratio Adjustment Sleeve | #194406P
Out of stock
$57.32
1/2" ID Black Tubing 100'
In Stock: 379
$57.19 $68.08 -16%
Netafim Black Polyethylene Tubing | 1in - 1.06in Diam - Black - 100ft per Roll
In Stock: 5
$55.91 $71.20 -21%
Dilution Solutions 3/4 in Filter Kit with Unions, 200 Mesh/80 Micron
Out of stock
$54.14
OASE Fountain Pump 320 | 320gph - 16ft cord - Hose Size 1/2in - 3/4in
In Stock: 5
$53.95 $73.99 -27%
Dilution Solutions 3/4 in Check Valve
Out of stock
$53.90 $59.49 -9%
HydroLogic TALLBoy ChloraShield Replaceable Carbon Filter Upgrade - 2 GPM - 1 Micron
In Stock: 25
$52.48 $73.45 -29%
Active Aqua Commercial Air Pump, 6 Outlets, 20W, 45 L/min
In Stock: 778
$52.22 $59.39 -12%
EcoPlus Eco Air 1 Commercial Air Pump - 793 GPH - 1 Outlet
In Stock: 68
$52.21 $67.46 -23%
EZ Clone Water Pump (Mag 450), 320 GPH
In Stock: 5
$51.81 $60.19 -14%
Danner The Fountain Pump Statuary Pump with Barb Fittings | 290gph - 6.5ft Max Pumping Height - Includes : 1/2in, 5/8in and 3/4in Tubing Adapters - Grounded Power Cord
In Stock: 61
$50.99 $83.99 -39%
Hydro Systems Replacement Parts Kit B | For A30 - #011945V
Out of stock
$50.82
HydroLogic HyperLogic Poly-Spun Sediment Pre-Filter - 20in x 4.5in - 5 Micron - Single Use
In Stock: 75
$50.09 $59.75 -16%
Gardena Smart Flow Water Meter
Out of stock
$49.55 $58.99 -16%
Hydro Systems Replacement Parts Kit M | For SuperDos - Mounting Bracket
Out of stock
$49.27
Active Aqua Utility Sump Pump, 1479 GPH/5600 LPH
Out of stock
$49.25 $153.29 -68%
Raindrip Set-N-Flow Analog 3 Dial Water Timer | Time Delays up to 72 Hours - On/Off Control - Low Battery Indicator - Easy to Program
In Stock: 13
$48.88 $73.99 -34%
Active Aqua Submersible Water Pump, 550 GPH
In Stock: 225
$48.27 $64.72 -25%
Active Aqua Root Spa 5 gal Bucket System
In Stock: 200
$47.82 $56.93 -16%
Danner Pondmaster Fountain-Mag Magnetic Drive Water Pump | 140gph - for Small Garden Fountains, Piped Statuary, and Shallow Water Conditions
In Stock: 7
$47.56 $62.99 -24%
Dosatron Mini Seal Kit for D14MZ2, 14 GPM
Out of stock
$47.28
Hydro Systems Replacement Parts | For MiniDos - Gasket - #80195720
Out of stock
$47.07
Hydro Systems Repair Kit A | For MiniDos 1% Viton
Out of stock
$45.61
GroStar GS3-E replacement EC electrode
In Stock: 100
$45.35 $53.99 -16%
HydroLogic Stealth-RO & smallBoy KDF85 Catalytic Carbon Filter Upgrade - For Stealth-RO & smallBoy Systems
In Stock: 60
$45.28 $50.95 -11%
EcoPlus Aqua Heat Titanium Reservoir & Aquarium Heater - 300 Watt - 68°F to 93°F
In Stock: 39
$44.67 $54.40 -18%
Danner Supreme Hydroponics Low Volume Air Pump | 4 Watts - Accepts Standard 3/16in Tubing
In Stock: 52
$44.60 $63.99 -30%
Netafim Manual Disc Filter | 0.75in
In Stock: 70
$44.35 $55.90 -21%
Netafim Disc Filter 3/4" MPT x MPT 140 Mesh 17 GPM Maximum Flow
In Stock: 10
$43.72 $47.66 -8%
Polyester Element for Spin-Down Sediment Filters | 1.5in - 140 Mesh
Out of stock
$43.55
HydroLogic Stealth-RO & TALLBoy Quick Connect Pressure Regulator Fittings - 3/8in QC
In Stock: 27
$43.48 $52.45 -17%
HydroLogic PreEvolution Sediment Filter - Pleated - Cleanable
In Stock: 45
$43.29 $51.56 -16%
GroStar GS1-E replacement pH electrode
In Stock: 101
$42.83 $50.99 -16%
Active Aqua Air Pump, 8 Outlets, 12W, 25 L/min
In Stock: 2444
$42.59 $75.59 -44%
Alchemist™ H2O2 Liquid Oxygen - 1gal (OR)
Out of stock
$42.53
HM Digital Hydromaster Replacement EC/TDS Probe
Out of stock
$41.99 $49.99 -16%
Danner Pondmaster Fountain-Mag Magnetic Drive Water Pump | 80gph - for Small Garden Fountains, Piped Statuary and Shallow Water Conditions
In Stock: 14
$41.92 $56.99 -26%
Dilution Solutions HM Digital pH Tester | 6in x 1.7in x .7in
Out of stock
$40.93 $49.95 -18%
Hydro Systems Replacement O-Ring | On/Off - #80212116V
Out of stock
$40.89
Dilution Solutions 1 1/2 in Check Valve
In Stock: 48
$40.04 $43.49 -8%
Active Aqua Air Pump, 4 Outlets, 6W, 15 L/min
In Stock: 520
$39.79 $45.28 -12%
HM Digital COM-80 EC/TDS/Temp Waterproof Hydro Tester
In Stock: 97
$39.69 $42.95 -8%
Leader FA5 Clear Filter Housing | 5in - Transparent - 1in Female Thread
In Stock: 224
$39.31
HM Digital PH-80 pH/Temperature Meter
In Stock: 141
$39.09 $46.50 -16%
HydroLogic TALLBoy Green Coconut Carbon Filter - 2 GPM - 5 Micron Filtration
In Stock: 38
$38.72 $46.13 -16%
Hydrologic MicRO RO Membrane, 75 GPD
Out of stock
$38.34 $59.95 -36%
Heavy Duty Tomato Barrel w/Tower (Case of 4)
In Stock: 1742
$38.25 $48.99 -22%
HydroLogic Merlin-Garden Pro Green Coconut Carbon Filter - 2 GPM
In Stock: 29
$38.02 $45.21 -16%
Danner The Fountain Pump Statuary Pump with Barb Fittings | 200gph - 6.5ft Max Pumping Height - Includes : 1/4in and 1/2in Tubing Adapters - Grounded Power Cord
In Stock: 104
$37.81 $58.99 -36%
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