Whole house humidifier, manufactured by Research Products Corp®. The Model 550A /558 Bypass Humidifier was designed with ease of service in mind. Installed on the warm air plenum or on the return air duct, this model utilizes the famous Aprilaire flow through design that constantly flushes away trouble causing minerals not deposited on the replaceable water panel and provides exactly the right amount of moisture in vapor form.
The unit is 13-1/4" W x 12-3/4" H x 9-1/4"
Bypass Connection: 6"
Plenum Opening: 9-3/8" W x 9-1/2" H
Drain size: 1/2" I.D.
Price $ 189.00
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