The newest member to Hanna instruments Combo series of combination waterproof testers with advanced functions is HI 98121, designed for simultaneous pH and ORP measurements. HI 98121 also reads temperature, which is continuously ...
American Marine PINPOINT ORP Controller PINPOINT ORP (REDOX) Controller™ is an inexpensive rugged controller complete with a platinum ORP probe. This device will automate another electrical device like an ozonizer or ozone g...
Note: While this fitting has a union, it is not designed to seal/hold water when the union is removed. The union is primarily for maintenance of the ball valve.
**Variations of this product can be found in many online st...
Outlet for Table Top Pumps
Decorative Spitter and Ultraviolet Sterilizer in one body. Ultraviolet is a proven dependable and effective method of controlling algae and harmful bacteria without leaving any residuals in the water. Aqua Ultraviolet utilizes the...
Replacement Quartz Sleeve for 8W Aqua Ultraviolet Advantage 2000 UV Sterilizer.
Spare pH electrode, with Teflon ® junction, 2 m (6.6') cable, for general purpose, water treatment and agriculture.
Liquid krill flavor enhancer for pond fish food. Spray onto any food to enhance flavor!
Improves taste of oral medications & convalescent diets
Enhances flavor of feeds with high protein content
Compliments the ra...
TDS solution are produced with high-quality potassium chloride in various concentrations. They are standardized using a conductivity meter calibrated with NIST potassium chloride. HANNA instruments is one of the few producers to ...
Includes historical overviews, plant directory and how to details on building, stocking and maintaining a garden pond. 304 pages.
Create lovely ponds in any small container for indoors & outdoors. 128 pages.
This book explains how to plan, construct and maintain a healthy water garden.
Simple plans show how to design a water garden for easy maintenance. 127 pages.
1/2in Hose Valve for PowerJet Original Pump 250 2 Pack
WATER IN THE GARDEN by James Allison (hard cover) Covers all aspects of water gardening. Beautifully illustrated with over 200 color photographs and drawings. 160 pages.
Pond Flourish™ is a liquid growth stimulator for pond plant stems and leaves. It contains a broad spectrum of essential trace elements, vitamins, and amino acids. It is rich in iron, manganese, magnesium, calcium, and potassium. I...
1-1/4in Riser Stem w/Quick Fit Coupling/Directional Flow Control "T" f/PT430
Hanna Instruments Replacement Electrode for DiST 5 Waterproof Low Range EC/TDS/Temperature Tester