Protectus Fire Service Meter Protectus Sized 4", 6", 8", and 10" |Brochure| |Guide| |Parts| |Warranty| The Protectus III fire service meter is designed to measure both domestic and fire service. High Performance Fire Service Turbine Fire Service Turbine 2", 4", 6", 8", and 10" |Brochure| |Guide| |Wa...