Aprilaire Single-Stage, 2 Zone Control Panel #6202 $150.00 Aprilaire Single-Stage, 3 Zone Control Panel #6203 $160.00 Aprilaire Single-Stage, Heat Pump, 3 Zone Control Panel #6303 $225.00 Aprilaire Expansion Panel (used with #6404) up to 12 Zones #6402 $149.00 Aprilaire Heat/Cool or Heat Pump, up to 12 Zone Control Panel #6404 $289.00 Aprilaire Single or Multi-Stage Heat/Cool, 2 to 4 Intelligent Zone Panel #6504 $349.00 Schill's, llc 103 Curtis Street Arlington, WI 53911 Limited Hours Customer Service: 888-528-0225 Email: Info@Schills-Humidifier.com Fax: 608-592-3205 Manufacturer's Numbers: Aprilaire: 800-334-6011 Broan Fan/Heater Questions: 800-637-1453 Delta Faucet Questions: 800-345-3358 Grohe Faucet Questions: 630-582-7711 Hart & Cooley Questions: 616-656-8200 Kohler Faucet Questions: 800-456-4537 Moen Faucet Questions: 800-289-6636 Stiebel-Eltron: 800-582-8423