16" Spillway Extension Module Installation & Maintenance Supplies it adds essential electrolytes

it adds essential electrolytes

and 2 diffusers to cover more area

These filters can be buried in the ground up to the control head

and all the necessary vitamins and minerals needed for health and vitality

16" Spillway Extension Module Installation & Maintenance Supplies it adds essential electrolytesPhoto shows 3 units. Top unit is simply the left right end pieces put together. Middle unit is left right end pieces with one 16" extension module. Bottom unit is left right end pieces with two 16" extension modules. Use this 16inch Extension Modules to form as large of a waterfall spillway as you'd like! These spillways are ideally suited for forming the headwaters of a waterfall stream feature. They are designed to be installed inside the liner to