Badger 3/4 in. NPTF 15 GPM Digital In-Line Meter. Made in Germany. New/unused.  See pics for opening diameter.  Note: the exact manufacturer for this unit is unclear; may be Badger since the meter is marked "made in Germany."  Was new/unused and sold to someone who hooked it up and tried it out, only to return it as defective because the readout stopped displaying.  I replaced the battery and the meter is working again.  Just needed a new battery.  I can't consider it "new" anymore because it technically was tested out with oil.  It has been drained and cleaned.

Size: 3/4 in.

Flow-Rate: 0.80 to 15 GPM

Product Type: Reads Gallons, Quarts, Pints and Liters

Weight: 1.00 LBS