Extra 2yrs (5 total). Paid to Red Sea nitrate crude protein (min) 1

crude protein (min) 1

The use of a graphite probe also reduces the polarization effect common with testers that use two stainless steel pins

In order to remove any air bubbles that may have escaped from the skimmer

leading to greatly improved water quality

Comes in black or silver

Extra 2yrs (5 total). Paid to Red Sea nitrate crude protein (min) 1Extra 2yrs (5 total). Paid to Red Sea Features Extra 2 year warranty on top of the standard 3 years (5yrs in total) on both the REEFER S aquarium glass and aluminum super structure (Terms & Conditions apply). This promotion is only available in USA, UK, Ireland, France, Germany, Austria, Netherlands & Belgium. We apologize if your country is not included.