ASC Anvil 1/2" Black Floor Flange. This durable malleable iron flange with a black finish is designed to securely connect a pipe to a floor. Manufactured and tested to meet Anvil's strict quality standards, it conforms to ASME B16.3 and B16.39. All elbows and tees 3/8 inch (10 DN) and larger are 100 percent gas tested at a minimum of 100 PSI (6.9 bar). Suitable for water and oil applications.