Here at Northeast Windows USA, we carry over 65 sizes of Fully Welded Vinyl Replacement Windows with Low-E & Argon Gas included. All of our windows are AAMA Gold Label Compliant and Energy Star rated. Any of our double hungs have a slide in channel for nailing flange to act as a new construction window. Our stock products range from double hungs, sliders, hoppers, casements, Egress Windows and patio doors. Check out our inventory pages for more specifics and listed sizes.