REEF KINETICS - REEFBOT REPLACEMENT REAGENT GLASS VIALS (SET OF 4) Reef Kinetics Sale! from 2000 /per Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. ReefBot Replacement Reagent Glass Vials (set of 4) - includes magnetic stirring rods. Certified replacement reagent glass vials for the ReefBot by Reef Kinetics.