A water meter resetter incorporates as a principal component a plastic body having six fittings lying in a common plane. A primary inlet and primary outlet are coaxially aligned on first and second opposed walls. A secondary outlet and secondary inlet are coaxially aligned on the opposed walls. In use, a first horn is rotatably attached to the secondary outlet, and a second horn is rotatable attached to the secondary inlet. A water meter is attached between the horns. Because the horns are rotatable about a common axis at each of their ends, the meter can be offset from the supply pipes at continuously variable heights. In an embodiment, the secondary inlet and outlet are internal, and the horns are held in a fluid-tight slip joint formed by internal O-rings. The height of the meter may optionally be locked by the use of an angle holder.