SITEDRAIN DS 184 Sheet Drain 4' x 50' Roll American Wick Drain Pipe Connection Fitting The Cast Iron Plates are The Cast Iron Plates are engineered to outlive the sidewalks they're installed in Truncated Domes are ideal underfoot audible and tactile detectable warning surface to alert visually impaired pedestrians of their proximity to potentially hazardous walking transitions SITEDRAIN DS 184 is an economical solution for double sided subsurface drainage applications requiring high strength SITEDRAIN DS 184 geocomposite drain is composed of a dimpled polymeric perforated core with a nonwoven geotextile bonded to both sides