Selling some of my equipment.
Everything is lightly used, in great shape:
Zeolite reactor Z90 $60
https://www.ebay.ca/itm/Zeolite-Medi...gAAOxyF0pTieB4
Hanna Checker Calcium $65
Hanna Checker Phosphorus ULR $45
Hanna Checker Alkalinity $45
Jebao DP-4 Doser $50