Aquascape® Alkalinity Booster with Phosphate Binder Size:9 Pounds which means that they are

which means that they are electronically controllable

Large O-Ring for Top on 2400VFX

The "Fire Department" model is red with black trim and features a white ladder-shaped mail flag

pH Down® neutralizes alkaline substances that cause high pH: mineral leaching

Aquascape® Alkalinity Booster with Phosphate Binder Size:9 Pounds which means that they areAquascape Alkalinity Booster with Phosphate Binder increases the overall KH and Alkalinity of the pond. An added phosphate binder helps water quality issues, significantly reducing pond maintenance. The treatment is phosphate and ammonia free. Added phosphate binder prevents water quality issues Lab tested, pharmaceutical grade, and completely dissolvable SKU UPC Code Description 96027 742575960272 Alkalinity Booster, 1. 1lb 96028 742575960289