ABS closet flange for the standard toilet rough-in — the hub socket fits over the ABS DWV pipe and solvent-welds down, anchoring the bowl to the finished floor and tying it into the drain in one fitting. It's the plain workhorse flange: no offset, no test plug, just a rigid 4×3 connection set square to the floor. It's a LESSO America ABS DWV fitting conforming to ASTM D2661 and CSA B181.1 with NSF/ANSI 14 and cUPC listings — the marks an inspector checks on a residential or light-commercial rough-in across the GTA. The wax or rubber seal and closet bolts are sold separately. DWV service only; test hydrostatically, never with compressed air or gas.