Substrate Barrier

The substrate barrier fits between the false bottom and the substrate layer to ensure that no substrate falls into the false bottom, disrupting water flow. The substrate barrier is a simple, inexpensive, and effective way to prevent your false bottom from becoming saturated and stagnant.

Size is approximately 24x48 inches (or 61x122 centimetres). Substrate barrier is slightly larger than stated to allow for overhang and trimming.