"Floor flange" covers three different jobs on this page, and the wrong pick means a return trip. The Leak Control Puddle Flange (Megaflex, In-Pipe, Lowline and Bermuda styles, 50-100mm) goes in before the slab or screed is poured — it's a waterproofing collar that seals the membrane around the pipe penetration, not a finishing piece; Art Australia's leak control range integrates the floor waste, membrane and drainage as one system. The DWV Floor Flange/Raised Shoulder (40, 50, 65 and 100mm) is a structural fitting that anchors the drain pipe to the floor itself, not a seal. Once the floor is finished and tiled or vinyl-set, the Vinylrite and Cast Bronze cam-lock flanges (50-100mm, in stainless, chrome-plated brass or bronze) give the floor waste a removable cam-lock bezel — lift the grate to clean without disturbing the membrane underneath. And where a pipe simply passes through a floor, wall or ceiling with an untidy gap around it, the Flexy Flange round cover plates (80mm OD for 9-22mm pipe, 105mm OD for 40-60mm pipe) stretch over the pipe as a tidy finishing cover — not a waterproofing seal.
