Soft-Lite not only offers quality windows, they produce beautiful gliding doors. These Kings Royal patio doors are equipped with every feature you are looking for in a door for your home. Some of these features include: Ultra-Smart Triple-fin weather-stripping to prevent mold and mildew, a sliding screen door, an aluminum capped threshold that will not rot or warp over time. This Soft-Lite door has an AAMA air filtration rating of .06cfm which is actually five times better than industry standards! You can choose your preference of right or left-hand operating panels when configuring the door for your home. Soft-Lites products are durable, beautiful and they last.