Sioux chief 821 series shower PAN drain shall be used where necessary in drainage systems. Drain shall have a beveled flashing base Adapter with mounting holes for sub floor installation. 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 and connect to dev. pipe Via solvent weld joint. Designed in accordance with same A112.18.2-2005/CSA B125.2-05.view less