We are pleased to announce our NEW HI98319 waterproof salinity and temperature tester! Waterproof and floats! Includes 4x of the Salinity Calibration Fluid Packets. Automatic Calibration – A 35.00 ppt solution is used for calibration and...

It is designed for testing the concentration of salt water and brine and used for quality control in research and clinical laboratories and marine industry. Its scale provides a direct reading of the specific gravity and concentration (part per Thousand)...

This refractometer does not come with a case or battery. The new Milwaukee MA887 Seawater Digital Refractometer encompasses 3 different types of user selected scales for the measurement of seawater providing for a much more precise evaluation. Each...

Fritz ProAquatics Reef Pro Mix (RPM) is manufactured using only the highest quality raw materials. Formulated by researchers and marine scientists, RPM contains all of the necessary major and minor elements of natural sea water that are utilized by...

The Classic RO systems make up to 100 GPD of economically filtered Reverse Osmosis water, removing harmful substances like heavy metal ions and total dissolved solids from tap water. Features: Manual flush valve allows user to increase membrane...

The Aquatic Life Twist-In 100 GPD 3-Stage Reverse Osmosis (RO) and 4-Stage Reverse Osmosis Deionization (RODI) filtration systems are very compact water purification solutions that efficiently combine reverse osmosis RO and DI technology with our...

Main features of Red Sea’s Seawater Refractometer include:Directly reads the absolutesalinity ofseawaterat25°C/77 0F ( No need for seawater or temperature compensation factors)Specifically designed for the ionic content of seawater (NSW) for...

MaxPureMPDI 90-GPD 4-Stage RO/DI System w/ std 90gpd RO membrane, 1um pre-filters, color-indicating SilicaBuster DI cartridge, pressure gauge, & hose adapter SpectraPure 90gpd MaxPure RODI System incorporates a high-silicate removal TFC membrane, 1...

The Perfect Low Budget Beginner Aquarium Kit.  This is a great way to get started in the hobby, everything included will help you get started with a fish only saltwater aquarium. What's Included in The Kit? Aquarium - Aqueon 20 Gallon High - 24"...

LED boxed kits offer a complete habitat with LED lighting to bring the aquarium to life. The energy saving low-profile LED hood features cool white modules for total illumination, a convenient feeding door in the front and breakout sections in the back...