Sioux Chief 821 series shower pan drain shall be used where necessary in
drainage systems. Drain shall have a beveled flashing base adapter with
peripheral mounting holes for securing to subfloor. Strainer shall meet
all load and flow requirements for installations in shower areas. Invertible
clamping collar shall fasten to drain body with four screws that thread into
brass inserts. Drain body shall have a 2" Sch. 40 hub connection