Standard Features - For Home Sizes up to 2,800 Sq. Ft. - 17 GPD (Based on 120 Plenum Temperature) - 24V - Shut-Off Damper - 13 lbs. - Included: MHX3C Manual-Control Duct Mount Humidistat. - Replacement Vapor Pad number 990-13 (GFI #7002). Replace 1-2 times per season. - 5 Year Warranty.