16440 South State Street
South Holland, Illinois 60473
email: info AT mrk9 DOT net
site admin phone: 1-855-HIGHPWR
site admin email: admin AT mrk9 DOT net
*Although we periodically check our emails, there are instances in which we are not able to promptly respond. If your inquiry is in need of immediate attention, please call us at 1-708-799-0999 so that we can help you more urgently. If you have website questions, please contact our site admin.