A quarter-sized hole in the motor housing provides access so a long-handled 1/8" Allen wrench can turn the set screw

The TPD400S from Atlantic Water Gardens is a complete system and come with Aeration Cabinet Assemblies with all subcomponents pre-installed

The  240V 3400HVFX  decorative fountain comes with Kasco  C-85 Fountain Control Panel

ERP Valved Outlet Assembly - 4 Valved Outlet

There are times when full implementation without an acclimation period can lead to disaster

Atlantic 88 Watt Transformer w/ Photo Cell and Timer TRANS88 metal spillway A quarter-sized hole in theAtlantic 88 Watt Transformer w Photo Cell and Timer TRANS88 88 Watt Transformer with built in Photo Cell Eye and Timer for Warm White, and Color Changing Lighting by Atlantic Water Gardens This Transformer is compatible with all 12 VAC 2 Pin 2 Wire LED Lighting components from Atlantic Water Gardens, INCLUDING the solid LED Colorfalls that come in SOL White, Crystal White, and Ice Blue. It can ALSO be used to power the InfiColor Color Changing LED