Hanna Phosphate ULR Checker HI774

[Khiyasu]

Jl aquatics and reef supplies both have them and on sale


Sent from my iPhone using Tapatalk

[gregzz4]

I prefer the Hanna HI736 ULR Phosphorus unit

When using the Hanna Phosphorus to Phosphate conversion chart the 736 gives the equivalent of the 774 with a third decimal place