Supply Giant floor flange for the use in applications with a maximum pressure of 150 LB. In particular, the Hole of the flange is suited for use with pipes with a diameter of 1/4 inch. Furthermore, the flange is made of malleable iron, with a galvanized coating for optimum strength and durability, and it has four holes for secure mounting to the floor. Before leaving the factory, which is an Iso9001:2000 certified production ENVIRONMENT, the fitting is 100% pressure tested. Moreover, UL/ulc and fm approved the design, which meets the astm a-197 and ansi/astm B16.3 and B16.14 standards. ⚠ California Proposition 65 Warning: This product is known to the state of California to cause cancer, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.