I have noticed that these have been installed to replace much older GLS radial waves on La Loma Rd, Pasadena, California. If anyone knows the manufacturer and model, that would be great! https://www.google.com/maps/@34.1346011,-118.160564,3a,18.7y,152.36h,119.9t/data=!3m6!1e1!3m4!1sqHnWOmEphZFdbWluY6g8Rg!2e0!7i16384!8i8192?coh=205409&entry=ttu