Seachem Glassware Bubble Counting Diffuser Hang-On Filters Flourite® is good for the

Flourite® is good for the life of the aquarium and need not be replaced

It can also be used as a portable device

Manganous Oxide

6700 K Color temperature

If you run a test using the reference sample and obtain the correct result (based on the known reference value provided) then you know the test is giving correct results

Seachem Glassware Bubble Counting Diffuser Hang-On Filters Flourite® is good for theThe Bubble Counting Diffuser is a pollen style CO2 diffuser that connects to CO2 injection systems to easily disperse CO2 gas into the planted aquarium. The built in bubble counter allows for easy monitoring of the rate of CO2 injection. The inclusion of a bubble counter in the diffuser makes the use of a bubble counter on the CO2 tank or in line unnecessary. The Bubble Counting Diffuser has a 17 mm disc. Monitor rate of CO2 injection For aquariums up