Contains: 3 pieces of gray channel with grate, 1 end cap, and 1 end outlet. The length of each piece is 39.20". Storm Drain Water Management System Plus is a long lasting permanent solution for the removal of standing surface water. The easy installation is ideal for driveways, pools, patios, walkways, sports courts, and more. All products are UV (ultraviolet) inhibited. Grates are ADA (American with Disabilities Act) and heel guard compliant. No clips or screws required to assemble.