Atlantic Bio-Rock Media direct drive 5” socket fittings and 2”

5” socket fittings and 2” bore holes

It’s best used with Pond-free and Fountain installations and is best used with the PV7500

Useful for a variety of outdoor irrigation applications

The weather-proof connections eliminate the need for manually splicing and connecting cables during installation

Atlantic Bio-Rock Media direct drive 5” socket fittings and 2”MPN: 73987 High surface area provides the optimal environment for beneficial bacterial colonization With all of the surface area but 25% less weight than lava rock and half the weight of gravel, expanded clay Bio Rocks are the more stable, less abrasive alternative to heavyweight bio media Expanded clay is a lightweight, stable, and less abrasive alternative to lava rock and gravel Durable and easy to clean Use one box of Bio Rocks per BG2234 Media