VALID TOWARD STANDARD PRICING ONLY, MINIMUM INVOICE 250.00, RESEDENTIAL USE ONLY. LIMIT ONE COUPON PER HOUSEHOLD. CANNOT BE USED TOWARDS NEW SYSYTEM PURCHASE. CANNOT BE USED TOWARD PURCHASE OF ANY FAMILY PLAN OR SERVICE CALL FEE, NLY VAILD ON WORK PERFORMED, PLEASE MENTION COUPON WHEN CALLING AIR GENERATION.