ParkUSA manufactures multiple types of water meters that share the same function: to measure used water volume. Water meters typically have a strainer upstream to protect against debris and reduce turbulence. On the upstream and downstream side of the water meter are isolation gate valves. Along with a bypass, this arrangement allows the meter to facilitate future calibration and maintenance without service interruption to the end user.

Water is measured using one of the following methods: a physical displacement meter, a turbine, a propeller, magnetic coils, ultrasonic sound waves, or a combination of meter types. In a positive displacement water meter, water is measured by physically displacing water in direct proportion to the amount of water that passes through the meter; the turbine meter employs a rotor and magnet that uses electrical pulses to transmit data to the register; the propeller method capitalizes on a series of pulses generated by a magnet that rotate with the propeller; the magnetic meter includes two sets of coils with one set of energized with an electrical current and the other set senses the magnetic field created by the current when water flows through the pipe to create a voltage proportional to the velocity of the water; and, finally, the ultrasonic meter utilizes targeted sound waves to accurately measure the velocity of moving water.

Most water meter assemblies are placed underground and housed within a vault enclosure. The vault is manufactured of precast concrete and contains a hatchway for accessibility to the meter and accessories.