Promotional value expires 120 days after purchase. Amount paid never expires. Valid only within 30 miles of zip code 75060 and 78229. Appointment required. Offer is limited to 1 system. Limit 4 per person. May be repurchased every 365 days. Must use promotional value in 1 visit. Valid only for option purchased. All goods or services must be used by the same person. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services. Learn about Strike-Through Pricing and Savings