Marathon Bath Systems Tub to Shower Conversion in Plymouth, MI | Professional Remodeling Plymouth homeowners choose us for tub to shower conversions. Fast, clean installation with beautiful results. Schedule your free consultation today. Phone: 734 858 0804 Address: Plymouth, MI 48170, USA Website: https://www.marathonbathsystems.com/ GMB: https://share.google/Irds... https://www.marathonbathsystems.com/