I have couple Brand New Main Control Unit Aquarium Doser (3 heads) from Seaside Aquatics for sale $210 and the Slave unit Aquarium Doser (4 Heads) for sale $170.
This pump programs like ghl profilux, so you can dose one a week, two a week or 1 time bi-weekly.
The Main Control 3 Heads Doser (DP3) for sale $210
The Slave Unit 4 heads Doser (DP4) $170
This pump programs like ghl profilux, so you can dose one a week, two a week or 1 time bi-weekly.
The Main Control 3 Heads Doser (DP3) for sale $210
The Slave Unit 4 heads Doser (DP4) $170