Adjustable depth insertion paddlewheels that come in brass, PVC, or 316 stainless models to fit 3” to 40” pipe. Adapters mate with standard 1-1/2” (11x/21x) or 2” (15x/25x), or PVC (11x/21x) NPT threaded fittings such as saddles and weldolets which may be purchased either locally or from Global Water. (An FT Display needs to be selected with this Sensor)