NEW Drain Channel, Gray Deep Profile Plastic Grates, End Caps/Outlet fittings, 5-1/2 in. X 4 3/4 X 39-3/8 in., ideal for draining moderate flows from hardscape surfaces such as driveways, concrete and paver patios, courtyards, walkways, and sports facilities. Great for medium-duty pneumatic tire traffic, autos, and light trucks at speeds less than 20 mph. Included end cap/outlet combined with integrated bottom outlet and side-outlet knockouts provide 8 outlet options per channel section