Perma Tech's P90 dock seal saves you money by allowing one unit to do the job of two, by servicing both 8' and 8'6" wide trucks. This is accomplished with a unique "L" shape design which allows the truck to pass through the side pads, giving full unobstructed access to the interior of the truck. Because of this unique "L" shape, the P90 dock seal exerts less pressure on your building wall, an important feature for metal skinned buildings. The "P90" Dock Seal comes with an NF Curtain or Foam Head Pad as standard depending on door height. The "NF" head member is constructed with heavy-duty fabric and extra wear areas are available at critical truck contact points to reduce wear. A galvanized steel pipe across the top of the curtain holds it in place, along with end caps.