SIMONTON. Asure replacement vinyl windows feature a two-stepped sill design for water and air resistance, the company’s Lap-Lok meeting rail and thick fin seal weatherstripping to ensure a tight seal against wind and rain, and unique sill chambers for added strength and durability. The windows can be specified to meet Energy Star qualifications. Double-hung, slider, picture, and geometric styles are available. 800.746.6686. www.simonton.com.