Sioux Chief 833 series FinishLine™ adjustable above-grade flashing drain shall be used where necessary in drainage systems. Flashing drain shall allow adjustment of 11/4 before the concrete pour, and 1-1/4 after the concrete pour. Flashing drain shall have an invertible flashing collar and ABS/PVC base adapter. Strainer shall meet applicable load requirements for intended use. Trap primer port shall be threaded 1/2 FIP for optional connection. Designed in accordance with ASME A112.6.3-2001.