The SV24 provides 20" visual and sampling access to the waste stream in commercial building drain lines, including restaurants, schools, labs, manufacturing plants, and industrial facilities. Designed for indoor and outdoor applications in pedestrian and H-20 traffic areas, and can be installed above grade (supported or suspended) or below grade (compatible with FCR2 riser to bring system to grade). More Features: Rotomolded polyethylene Combination plain-end inlet/outlet fittings connect to 4" and 6" standard flexible couplings Safety Star® access restrictor prevents accidental entry