5" Floor Flange for 2" Diameter Tubing securely holds and fastens pipes and tees firmly in place. These floor flanges are carefully curated for an easy connection design so you can have peace of mind. Premium floor flanges easily attach to concrete, hardwood, wood, drywall, & other hard surfaces. You can securely anchor your floor flange to furniture such as tables, shelves, bookshelves, or other spaces.