Image Bayco® High Flow-Series Swing Check Valve Round TTMA Flange Markets Transportation Jump to Section Product Options Related Products Product Options Part Number Length Flange Size Seal Material 3030RD-SSP 6-7/8" 3" White silicone Aluminum 3030RD 6-7/8" 3" White EPDM Aluminum 3031RD 6-7/8" 3" Metal-to-metal Aluminum 4040RD 9" 4" White EPDM Aluminum 4041RD 9" 4" Metal-to-metal Aluminum 4042RD 9" 4" White silicone Aluminum Related Products Image Bayco® High Flow-Series Swing Check Valve Grooved Pipe Image Bayco® High Flow-Series Swing Check Valve Square TTMA Flange Image Swing Check Valve Repair Kit Image TTMA Flange Gasket