Standard Features - Included: Our GFX3 Automatic Digital Humidistat. Features a manual or automatic mode with an outdoor sensor for temperature compensating control. - For Home Sizes up to 2,000 Sq. Ft. - Patented KineticFlo water distribution system for maximum evaporative performance. - Duraplast ultra-violet stable automotive-grade plastics. - Integral humidity control bypass damper, transformer, solenoid valve, Vapor Pad, saddle valve, GDV3412 Code Valve, and the industries first Automatic Digital Temperature Compensating Humidistat. Note: GDV3412 Code Valve offered with automatic models only. - Bypass humidifier mounts easily on the warm or return plenum and delivers 12 GPD. - 24V. - 7 Lbs. - VaporPad replacement: GA10 (GFI #7900). Replace 1-2 times per season. - 10 Year Warranty.