Grid-Guard is manufactured by JDR Enterprises out of Alpharetta, Georgia. Since gaining momentum in the oil and gas field with Grid-Guard, and Grid-Guard+ (with geotextile backing). We are now introducing Grid-GuardHD. GGHD is an 11mm heavy duty protection grid that meets industry standards for rockshields. In addition to Grid-GuardHD, we are offering Grid-GuardHD PLUS that includes a 6oz geotextile backing for added coating protection on your pipeline. Please contact us with any questions or to find a distributor of Grid-Guard products in your area.