If it arrived and was shown to basement water meter area. he explained that he had an issue with his Moen flow sensor, and moen had sent him a replacement. Customer had attempted to swap out units however cracked the union plastic nut for the unit upon reinstallation.And could not remove the brass adapter by himself. Technician pulled off brass adapter removing broken nut and replaced new nut and brass adapter with the new unit. New unit was installed water was restored and tested to ensure that there were no leaks and the mowing flow unit was functioning properly.