Solid uPVC Vinyl Construction,This low maintenance material will not dent, scratch or corrode like aluminum and wood materilas. It remains color fast throughout the material for a beautiful, long-lasting appearance. Vinyl also provides your replacement windows superior insulating value.
Four-Point Fusion-Welded Frames and Sashes, Eliminate separations and leaks, supplying your vinyl replacement windows maximum strength and energy efficiency.
Parallel I-Beam Construction, The same technology used in bridge design is utilized to create a dramatically stronger double hung replacement window mainframe system.
Contoured Interior and Exterior Sash Design, Clean interior lines create a 'picture frame' appearance similar to that of traditional wood windows.
Easy-Flow Weight Management System with Draft Sentry, A weight managemnet system that utilizes the identical cord material used in mountain climbing. This balance system enables you to easily operate your window's sashes. The Draft Sentry Plug prevents air from entering through the balance tracks and into your home.

Double Hung Windows With A Dependable Design:
Picture on the left illustrates the FHI Double Hung Vinyl Replacement Window's unique "By-Pass" Meeting Rail, designed to provide an unobstructed view.
Also shown is the Full-Length Dual Wedge Interlock with Exclusive reinforcement, providing superior sturctural integrity and air tightness.
Double Finseal Woolpile Weather-Stripping is also at the meeting rail to provide a blanket of thermal protection.
Security is definitely a priority in the design of the FHI Double Hung Vinyl Replacement Window! At the sash meeting rail, Dual Recessed Locks and Double Strength Stainless Steel Keepers are attached to the Exclusive structural reinforcement. Unlike other designs in which the keeper is just screwed onto the vinyl, the FHI® Double Hung Windows' stainless steel keeper is recessed and pinned into the vinyl, making it extremely difficult for intruders to pry open.
Triple Wall Vinyl Lift Rails, These full width lift rails assure effortless sash operation.
Sloped Weather-Inhibitor Sill, This internal water management system is two and one half times more resistant to water penetration than other frame designs, such as the Cut and Notch.
Double Foam-Tite® Seal on Sill, Creates a weather-inhibiting barrier.