If your 24-7 Nutrient Monitor pH electrode breaks or wears out, order this item. This electrode is compatible with the combination Hanna meter listed on this site as HI9813-6 GROCHECK PORTABLE COMBO.
Our Price $37.20 / each Estimate Shipping · Price Match
25.5% Off Suggested Retail Price
$49.95 You Save $12.75!
Note: Calibration Buffer Solutions are available separately.
— Ships from Portland, Oregon USA
For more information, please visit the manufacturer
Hanna Instruments' website.
See more Hanna Instruments products.