We have long been known for making one of the tightest horizontal
sliders on the market. While many competitors hide their air
infiltration rates, Gerkin touts a rate that is over 400% better
than architectural standards. These sliders feature dual
interlocks, dual weather strips and tapered sash rails, which allow
for uncommonly low air infiltration rates. Our NFRC thermal numbers
also boast one of the best found in aluminum windows. The Rhino
slider offers a great overall value in cost and performance.
Our fixed and slider windows are so well made, that even Hilton
Corporation has named Gerkin as one of their preferred windows.