WEEB DMC Grounding clip. This is a grounding clip designed for many applications, including grounding Enphase micro-inverters to the following rail types. (Note: Grounding clips are not required for an Enphase installation, as they have grounding lugs attached to each micro-inverter, but Weeb Clips tend to be faster when used properly.) Priced per clip.
If your rail type is not listed above, and you are unsure as to which pieces you may require feel free to contact us with your details and we will be happy to help you out!