| Sort by Popularity | Manufacturer | Product(s) | Model | Price+ | Buy Now |
| | Sun System / Sunlight Supply | TWIN PACK ELECTRODE CLEANER SOLUTIONS PART A & B 8 OZ (10/CASE)
Genesis Electrode Cleaning Solutions [model ECS-T8-C & ECS-T16-C]
ELECTRODE CLEANER TWIN PACK 8OZ (10/CS)
Used to clean meter tip. Works for both pH and conductivity meters. Comes as a two part A and B cleaning solution to remove both organic and inorganic deposits from meter sensors. Use monthly or as needed to refresh your meter and keep it working optimum. Soak tip in ... This item is sold individually....more. | 722430 | $4.25 | |
| | HM Digital | HM 1000 PPM CALIBRATION SOLUTION
HM 1000 PPM CALIBRATION SOLUTION (716170)HM Digital TDS Calibration SolutionFor optimal performance, re-calibrate your meters periodically or if testing TDS or conductivity levels in wide or different ranges.
NaCl calibration solution.
Comes in lightweight HDPE plastic bottles.
Sealed with a coated foam liner.
... ...more. | 716170 | $4.38 | |
| | General Hydroponics | pH 7.0 CAL SOLUTION 8OZ (12/CASE)
Genesis pH Calibration Tri-Pack Solutions
PH 7.01 CAL SOLUTION 8OZ (12/CA
User friendly Tri-Packs contain everything you need to properly calibrate or maintain your meters.
Manufacturer's Product Information
2007 MSRP Each $6.95
Case Weight7.95 LB
Case Dimensions7.5 x 7.5 x 7.5 IN
Case Quanti... This item is sold individually....more. | 722030 | $4.55 | |
| | Control Wizard | pH 7 Buffer Solution. 4 fl oz
Control Wizard Products 7.0 pH Buffer Solution 4 oz. bottle. Can be used to calibrate Hanna, Myron L., Oakton and other brands of pH meters.... — Ships via UPS from Portland, Oregon USA...more. | NT700 | $4.95 | |
| | Control Wizard | pH 4 Buffer Solution. 4 fl oz
Control Wizard Products 4.0 pH Buffer Solution 4 oz. bottle. Can be used to calibrate Hanna, Myron L., Oakton, and other brands of pH meters.... — Ships via UPS from Portland, Oregon USA...more. | NT690 | $4.95 | |
| | Control Wizard | CWP Instruments Store It! Electrode Storing Solution. 4 fl. oz.
CWP Instruments Store It! Electrode Storing Solution. 4 fl. oz. Store It! is a solution that is used when storing pH electrodes. Electrodes that are stored dry often times do not work properly when it comes time to use them. Use Store it! between tests to keep the glass bulb on your pH meter from drying out.... — Ships via UPS from Portland, Oregon USA...more. | NT770 | $4.95 | |
| | HM Digital | HM Digital pH Electrode Storage Solution (10/Cs)
HM Digital - pH Electrode Storage Solution
Always make sure your sensor is kept in an electrode storage solution. If dry, refill the pH meter cap with this specially formulated KCl storage solution for pH and electrodes.
Total Volume: 60cc.
Not for calibration. To calibrate your pH meter, use a pH buffer solution.... Note: Calibration Buffer Solutions are available separately. This item is sold individually....more. | 716150 | $5.21 | |
| | Control Wizard | 1382 PPM Buffer Solution. 4 fl oz
Control Wizard Products 1382 Conductivity Standard. 4 oz. bottle. Use to calibrate all meters that use the 1 EC to 500 ppm water standard. Adwa, Hanna, Oakton, Milwaukie. If your meter won't calibrate chances are you are using the wrong standard to calibrate it.... — Ships via UPS from Portland, Oregon USA...more. | NT730 | $5.22 | |
| | General Hydroponics | 1500 PPM CAL SOLUTION 8OZ (12/CASE)
Genesis pH Calibration Tri-Pack Solutions
1500 PPM REFERENCE SOLUTION 8OZ (12/
User friendly Tri-Packs contain everything you need to properly calibrate or maintain your meters.
Manufacturer's Product Information
2007 MSRP Each $6.95
Case Weight7.85 LB
Case Dimensions7.25 x 7.25 x 7.25 IN
Cas... This item is sold individually....more. | 722005 | $5.27 | |
| | Bluelab | Bluelab 27.1CF Calibration Solution 250ml (6/Cs)
Bluelab 27.7CF Calibration Solution
The CF27.7 (EC2.77) solution is used as a reference or checking solution to ensure you have adequately cleaned the EC/CF probe. Calibration Solutions should be stored in a cool place out of direct sun and heat. Please keep out of reach of children. They should be stored with the lids securely tightened.... This item is sold individually....more. | 732899 | $5.63 | |
| | Bluelab | Bluelab pH 7.0 Calibration Solution 250ml (6/Cs)
Bluelab pH 7.0 Calibration Solution
pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH 7.0 first (buffer) then to pH 4.0 (slope). Calibration Solutions should be stored in a cool place out of direct sun and heat. Please keep out of reach of children. They should be stored with th... Note: Calibration Buffer Solutions are available separately. This item is sold individually....more. | 732895 | $5.80 | |
| | Bluelab | Bluelab pH 4.0 Calibration Solution 250ml (6/Cs)
Bluelab pH 4.0 Calibration Solution
pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH 7.0 first (buffer) then to pH 4.0 (slope). Calibration Solutions should be stored in a cool place out of direct sun and heat. Please keep out of reach of children. They should be stored with th... Note: Calibration Buffer Solutions are available separately. This item is sold individually....more. | 732897 | $5.80 | |
| | Control Wizard | CW 1382 CALIBRATION SOLUTION 4 OZ (12/CASE)
Control Wizard 1382 Calibration Solution
CONTROL WIZARD 1382 CALIBRATION SOLUTION
Control Wizard Products 1382 Conductivity Standard. Use to calibrate all meters that use the 1 EC to 500 ppm water standard.
Manufacturer's Product Information
2007 MSRP Each $4.95
Case Weight3.88 LB
Case Dimensions7. ... This item is sold individually....more. | 716574 | $5.89 | |
| | Control Wizard | 1500 PPM Buffer Solution. 4 fl oz
Control Wizard Products 442-1500 PPM Buffer Solution 4 oz. bottle. Used to calibrate Myron L. & other TDS meters that use the 442 standard or .7 ratio of PPM to EC standard.Suitable for meters that use the horticultural/agricultural standards of .68 and .7. This is to say that 1 EC is = to 700 ppm total dissolved salts (TDS). Older style meters would use the water standard or .5 ca... — Ships via UPS from Portland, Oregon USA...more. | NT720 | $5.95 | |
| | General Hydroponics | GH pH Down Dry 2.2lb (12/Cs)
General Hydroponics™ pH Down Dry
PH DOWN 2.2LBS DRY (12/CASE)
This powdered acid formula is easy to handle and ship. Lightweight in comparison to liquids. Widely recognized as a consistent and reliable product.
Manufacturer's Product Information
2007 MSRP Each $12.95
Case Weight20.25 LB
Case Dimensi... This item is sold individually....more. | 722130 | $6.64 | |
| | | PH DOWN 15% QUART
Grow More pH Down 15%
Convenient ready to use liquids, concentrated, H.P. filtered, fast acting, high purity food grade ingredients. pH Down - to lower pH of nutrient solution with phosphoric acid.
MSRP: $8.59... ...more. | 721695 | $6.66 | |
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