Each IR EarthScrew Kit is good for 5 BallastRack frames, includes 10 EarthScrews. This kit provides fast and easy installation in almost any terrain with incredible strength. The IR EarthScrew is NOT recommended for silt/sand or rocky terrain, only dense compacted soil types. Ten pack kit is good for five BallastRack frames.

*One EarthScrew must be tested at the installation site to ensure it can withstand a minimum of 1,000 lbs of uplift.

*Professional installation is recommended with this mounting option.

*1" Conduit Pipe / EMT (NOT included) is required to link the frames together and can be sourced at any local hardware or electrical supply store in 10' lengths, which is enough to cover two panels.

For really dense soil types:

Pre-drilled holes may be required using an SDS Hammer Drill & 30 Inch SDS-Max Speed-X Carbide Rotary Hammer Bit for Concrete Drilling. Concrete mix can be poured into the holes with water for an even stronger anchor.