The General 1040R humidifier is a 120-volt whole house bypass style humidifier designed for residential and light commercial applications. It can be mounted on either the supply or return duct system and comes with a humidistat that can be duct or wall mounted. The unusual thihg about the 1040R is that it has a recirculating pump assembly bolted to the bottom of the unit. Annual maintenance on the General 1040R humidifier consists of replacing the humidifier filter or pad and washing out the humidifier including the pump water basin.
This unit is obsolete and parts are available while they last.