Trench Drain Terracotta Polymer - 3 x 3.33 Ft (10ft) Pack with 1 End Cap & Adaptor TERRACOTTA POLYMER CHANNELS - Three-Pack. Made from lightweight, UV stabilized Poly Propylene Polymer, each channel is 3.33 feet. EASY ASSEMBLY - Simple click together design. Easily removable grate that allows for easy cleaning. FOR HIGH RAINFALL AREAS - Perfect for high water flow areas in landscape water drainage projects. PERFECT FIT - Easy Cut sections every 8in and join using our Convertors, to perfectly fit to any location. DIMENSIONS - THREE 9.84ft channels: 39.37 L x 5.43 W x 5.39 H, with 1 end cap and 1 adaptor.