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GroStar pH calibration kit (pH 4/7/10, 8 oz. each)
In Stock: 17
$24.35 $28.99 -16%
GroStar EC Calibration Kit (2.77 EC, 8 oz. each)
In Stock: 49
$12.59 $14.99 -16%
HM Digital 1000 ppm TDS Calibration Solution, 3 oz (90 ml)
In Stock: 41
$9.56
Milwaukee Instruments pH 4.01 Calibration Solution, 230 ml
In Stock: 24
$13.83 $13.90 -1%
Milwaukee Instruments pH 7.01 Solution, 230 ml
In Stock: 80
$13.83 $13.90 -1%
AXEON Carbon 1252 Water Filtration System, 110V
In Stock: 1
$2,027.90 $2,756.95 -26%
AXEON Carbon 1665 Water Filtration System, 110V
In Stock: 1
$3,168.49 $4,307.60 -26%
AXEON HYDRO RO EZ-Twist Sediment and Carbon Cartridges, 3-pack
Out of stock
$126.00 $199.00 -37%
AXEON SDF-45-2005 Sediment Filter 4.5" x 20"
Out of stock
$26.31 $31.35 -16%
AXEON R1 Series Sediment Filter, 5 Micron
In Stock: 35
$25.06 $31.35 -20%
EZ Clone 360-Degree Replacement Mister, pack of 50
In Stock: 176
$26.59 $30.88 -14%
Bloom Brothers Hydro Halo Water Ring 6" w/3 Leg Support
In Stock: 4975
$6.50 $9.99 -35%
Bloom Brothers Hydro Halo Water Ring 9" w/3 Leg Support
In Stock: 1668
$5.59 $10.99 -49%
Bloom Brothers Hydro Halo Water Ring 12" w/3 Leg Support
In Stock: 1888
$8.39 $11.99 -30%
Basket Drip Stake w/Cage: Pack of 100
Out of stock
$36.15 $43.04 -16%
Raindrip Pressure Compensating Drippers, 2 GPH, pack of 25
In Stock: 188
$18.45 $21.97 -16%
oxyCLONE oxyCERTS - 1 7/8", Blue, pack of 20
In Stock: 2349
$18.51 $22.04 -16%
GroStar GS3 EC Pen
In Stock: 51
$95.75 $113.99 -16%
GroStar GS3-E replacement EC electrode
In Stock: 53
$45.35 $53.99 -16%
HM Digital HydroMaster Portable/Wall Mount/Bench Continuous pH/EC/TDS/Temp
Out of stock
$75.25 $359.00 -79%
HM Digital COM-80 EC/TDS/Temp Waterproof Hydro Tester
In Stock: 21
$36.08 $42.95 -16%
HM Digital Hydromaster Replacement EC/TDS Probe
Out of stock
$41.99 $49.99 -16%
HM Digital TDS-3 Handheld TDS meter
In Stock: 2
$23.09 $33.99 -32%
Milwaukee Instruments EC40 PRO EC/TDS Nutrient Meter
In Stock: 74
$90.99 $95.00 -4%
Active Aqua 1" Straight Connector, pack of 10
In Stock: 198
$7.95 $11.36 -30%
Active Aqua 1/2" Straight Connector, pack of 10
In Stock: 250
$3.91 $3.99 -2%
Active Aqua 3/4" Straight Connector, pack of 10
In Stock: 105
$6.34 $9.02 -30%
Active Aqua 1/2" Fill/Drain Fitting, pack of 10
In Stock: 663
$18.31 $21.83 -16%
Active Aqua 3/4" Fill/Drain Fitting, pack of 10
Out of stock
$20.58 $24.50 -16%
Active Aqua 1" Fill/Drain Fitting, pack of 10
In Stock: 302
$22.48 $26.55 -15%
Active Aqua Extension Fitting, 1", pack of 10
In Stock: 406
$5.85 $6.96 -16%
Active Aqua Screen Fitting, 1", pack of 10
In Stock: 313
$6.08 $7.23 -16%
Active Aqua Washer Fitting, pack of 10
In Stock: 511
$0.21 $4.67 -96%
Active Aqua 1" Elbow Connector, pack of 10
In Stock: 31
$8.58 $14.05 -39%
Active Aqua 1/2" Elbow Connector, pack of 10
In Stock: 4553
$3.91 $3.99 -2%
Active Aqua 3/4" Elbow Connectors, pack of 10
In Stock: 1149
$7.59 $10.83 -30%
Active Aqua Fill/Drain Combo Kit
In Stock: 707
$6.62 $8.55 -23%
Active Aqua Bottom Draw Pump Adapter, AAPW250/AAPW400, 1/2” inlet thread
In Stock: 126
$3.60 $4.29 -16%
Active Aqua Bottom Draw Pump Adapter, AAPW550/AAPW800, 5/8” inlet thread
In Stock: 177
$4.66 $5.55 -16%
Active Aqua Bottom Draw Pump Adapter, AAPW1000, 3/4” inlet thread
In Stock: 861
$5.54 $6.60 -16%
Active Aqua 1/2" Stopper, pack of 10
In Stock: 321
$5.31 $7.56 -30%
Active Aqua 3/4" Stopper, pack of 10
In Stock: 612
$6.24 $8.94 -30%
Active Aqua 1" T Connector, pack of 10
In Stock: 143
$7.59 $12.51 -39%
Active Aqua 1/2" T Connector, pack of 10
In Stock: 48
$4.09 $4.17 -2%
Active Aqua 3/4" T Connector, pack of 10
In Stock: 1849
$7.07 $10.09 -30%
Grodan Dutch Leach Tray Elbow, bag of 25
In Stock: 34
$2.02 $39.66 -95%
FloraFlex QDPS Open Flow Bubbler, Elbow, 3/4"
In Stock: 5
$6.19 $32.16 -81%
FloraFlex QDPS Open Flow Bubbler, T, 3/4"
In Stock: 23
$24.77 $32.16 -23%
FloraFlex QDPS Multi Flow Bubbler, Elbow, 3/4"
In Stock: 24
$25.58 $33.21 -23%
FloraFlex QDPS Multi Flow Bubbler, T, 3/4"
In Stock: 7
$25.58 $33.21 -23%
FloraFlex QDPS Multi Flow Bubbler, Elbow, 1"
Out of stock
$5.33 $33.71 -84%
FloraFlex QDPS Multi Flow Bubbler, T, 1"
Out of stock
$12.19 $33.71 -64%
Active Aqua Grow Flow Elbow Hardware Kit, pack of 6
In Stock: 246
$11.77 $14.03 -16%
Active Aqua Grow Flow 3/4" Elbow Hardware Kit, pack of 6
Out of stock
$13.09 $15.58 -16%
Active Aqua Grow Flow Tee Hardware Kit, pack of 6
In Stock: 231
$11.77 $14.03 -16%
Active Aqua Grow Flow 3/4" Tee Hardware Kit, pack of 6
In Stock: 238
$13.09 $15.58 -16%
Raindrip 1/4" Barbed Tee, pack of 50
In Stock: 60
$15.81 $18.82 -16%
Raindrip 1/4" Barbed Connector, pack of 50
In Stock: 85
$10.56 $12.56 -16%
Raindrip 1/4" Barbed Elbow, pack of 50
In Stock: 187
$8.83 $10.51 -16%
AXEON 30 Gallon Tank and 15 GPD Chemical Injection System 110V
In Stock: 1
$1,626.83 $2,211.69 -26%
AXEON 30 Gallon Tank and 4 GPD Chemical Injection System 110V
In Stock: 1
$1,537.86 $2,090.73 -26%
Dosatron D20S
Out of stock
$4,654.58
Dosatron INJECTOR 14GPM MAX 0.25 TO 2.25 TSP/GAL W/ 1 UNION
Out of stock
$1,454.00
Dosatron Water Powered Doser 14 GPM 1:500 to 1:50, 3/4 in
Out of stock
$841.72
Dosatron INJECTOR 14gpm MAX 1:330 TO 1:3000 BYPASS KALREZ/VITON SEALS
Out of stock
$1,563.84 $1,692.09 -8%
Dosatron Water Powered Doser 14 GPM 1:100 to 1:10, 3/4 in
Out of stock
$1,454.00
Dosatron 40 GPM, 1.25 to 7.5mL, Bypass Switch-AFLAS-Union
Out of stock
$2,252.68
Dosatron 40 GPM, 1.25 to 7.5mL, Bypass Switch VK Chem Seals
Out of stock
$2,163.28
Dosatron 40 GPM, 1.25 to 7.5mL, Bypass Switch-VITON-Union
Out of stock
$2,252.68
Dosatron 40 GPM, 7.5 to 75mL, Bypass Switch-VITON-Union
Out of stock
$1,523.34
Dilution Solutions Nutrient Delivery System (NDS) End Kit, 1 1/2 in
Out of stock
$592.89
Dilution Solutions Nutrient Delivery System (NDS) End Kit, 3/4 in
Out of stock
$451.43
Dilution Solutions (NDS) Micro-Doser System, 3/4 in Left to Right (Lo-Flo)
Out of stock
$2,070.32
Dilution Solutions (NDS) Micro-Doser System, 3/4 in Right to Left (Lo-Flo)
Out of stock
$2,123.44
Dilution Solutions Nutrient Delivery System (NDS) Micro-Doser Kit, 1 1/2 in Left to Right (Hi-Flo)
Out of stock
$2,824.30
Dilution Solutions Nutrient Delivery System (NDS) Micro-Doser Kit, 1 1/2 in Right to Left (Hi-Flo)
Out of stock
$2,768.92
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
Dilution Solutions Nutrient Delivery System (NDS) Monitor Kit, 1 1/2 in
Out of stock
$1,749.69
Dilution Solutions Nutrient Delivery System Nutrient Monitor Kit, 3/4 in
In Stock: 2
$1,441.13
Dosatron Mini Maintenance Seal Kit Doser 14GPM
Out of stock
$78.64
AXEON XE1-4040 RO Membrane 4" x 40"
Out of stock
$406.78 $484.76 -16%
AXEON R1 Series Membrane, 4040
In Stock: 38
$530.46 $665.52 -20%
AXEON S–200 Membrane Antiscalant, 5-Gallon
In Stock: 6
$727.86 $918.75 -21%
Hydrologic MicRO RO Membrane, 75 GPD
Out of stock
$37.80 $59.95 -37%
Dilution Solutions 3/4 in Mixing Chamber Sunshade
Out of stock
$34.52
Dilution Solutions 3/4 in Filter Kit with Unions, 200 Mesh/80 Micron
Out of stock
$54.14
Dilution Solutions Nutrient Delivery System (NDS) Mixing Chamber Kit, 1 1/2 in
In Stock: 13
$245.71
Dilution Solutions Nutrient Delivery System (NDS) Mixing Chamber Kit, 3/4 in
Out of stock
$135.31
Dosatron Mini Seal Kit for D14MZ2, 14 GPM
Out of stock
$47.28
Dilution Solutions Hi-Flo (NDS) Kit, No-Monitor, 1.5 in
Out of stock
$696.50
Dilution Solutions Lo-Flo (NDS) Kit, No-Monitor, 3/4 in
Out of stock
$551.40
Dilution Solutions Nutrient Delivery System (NDS) Starter Kit, 1 1/2 in
Out of stock
$720.45
Dilution Solutions Nutrient Delivery System (NDS) Starter Kit, 3/4 in
In Stock: 2
$353.84
Dilution Solutions Nutrient Delivery System (NDS) DAB Booster Starter Kit, 3/4 in
Out of stock
$239.36
Dilution Solutions Nutrient Delivery System (NDS) Water Hammer Arrestor Kit, 1 1/2 in
Out of stock
$754.17
Dilution Solutions Nutrient Delivery System (NDS) Water Hammer Arrestor Kit, 3/4 in
In Stock: 2
$373.49
Active Aqua Replacement Diaphragm for AADAP25L, pack of 2
In Stock: 24
$6.59 $9.44 -30%
Active Aqua 12-Outlet Metal Air Manifold
In Stock: 461
$15.11 $17.99 -16%
Active Aqua 6-Outlet Metal Air Manifold
In Stock: 115
$9.23 $10.99 -16%
Active Aqua 8-Outlet Metal Air Manifold
In Stock: 315
$12.59 $14.99 -16%
Active Aqua Submersible Pump Filter Bag, 10.5" x 13.125"
In Stock: 1616
$12.91 $13.19 -2%
Active Aqua Submersible Pump Filter Bag, 6.75" x 9.375"
In Stock: 872
$9.53 $11.36 -16%
Active Aqua Replacement Impeller for AAPW1000
In Stock: 589
$16.67 $19.85 -16%
Active Aqua Replacement Impeller for AAPW160
In Stock: 228
$3.09 $3.68 -16%
Active Aqua Replacement Impeller for AAPW250
In Stock: 85
$3.09 $3.68 -16%
Active Aqua Replacement Impeller for AAPW400
In Stock: 8542
$5.18 $6.17 -16%
Active Aqua Replacement Impeller for AAPW550
In Stock: 2773
$8.39 $9.99 -16%
Active Aqua Replacement Impeller for AAPW800
In Stock: 396
$8.39 $9.99 -16%
Active Aqua Pre-Filter for AAPW160
Out of stock
$0.01 $1.12 -99%
Active Aqua Pre-Filter for AAPW250
In Stock: 68
$0.06 $2.37 -97%
Active Aqua Pre-Filter for AAPW400
Out of stock
$0.29 $2.37 -88%
Dilution Solution Pressure Gauge, 0-100 PSI, 1/4" Mount
Out of stock
$17.64
Active Aqua Chiller 1/2" Fitting Kit for AACH10
In Stock: 406
$7.04 $8.39 -16%
Active Aqua Chiller 3/4" Fitting Kit for AACH10
In Stock: 8
$7.92 $9.44 -16%
Active Aqua Chiller 1/2" Fitting Kit: for AACH25,AACH25HP, AACH50 & AACH50HP
In Stock: 3
$9.69 $11.54 -16%
Active Aqua Chiller 3/4" Fitting Kit for AACH25, AACH25HP, AACH50 & AACH50HP
In Stock: 6
$9.24 $11.01 -16%
Active Aqua Chiller 1" Fitting Kit for AACH50 & AACH50HP
In Stock: 3
$11.45 $13.64 -16%
Active Aqua Chiller 1" Fitting Kit for AACH100 & AACH100HP
In Stock: 15
$15.86 $18.89 -16%
Cutting Edge Solutions pH Down, 1 qt, case of 12
In Stock: 21
$115.75 $167.88 -31%
Cutting Edge Solutions pH Down, 1 gal, case of 4
In Stock: 38
$93.74 $135.96 -31%
Cutting Edge Solutions pH Up, 1 qt, case of 12
In Stock: 18
$115.75 $167.88 -31%
Cutting Edge Solutions pH Up, 1 gal, case of 4
In Stock: 23
$93.74 $135.96 -31%
Microbe Life Hydroponics pH UP, 1 qt
In Stock: 20
$16.69 $19.99 -17%
Microbe Life Hydroponics pH DOWN, 1 qt
In Stock: 25
$16.69 $19.99 -17%
GroStar GS1 pH Pen
In Stock: 225
$101.91 $115.99 -12%
GroStar GS4 pH/EC/500ppm/700ppm/Temp (5-in-1) Combo Pen
In Stock: 147
$150.35 $178.99 -16%
GroStar GS2 Soil pH Pen
In Stock: 48
$215.87 $256.99 -16%
Show other 128 products