The Navien WPA (A) Clip-PPS, NPE 20018343A is a tankless water heater/boiler with a specific amperage of 20018343 A. This Navien brand product is designed to provide efficient and instantaneous hot water heating, making it a convenient and practical choice for home improvement projects in the heating, cooling, and air category. With its compact design and advanced technology, it offers a reliable solution for meeting the hot water needs of a household.