Tapered rubber expansion plug with a nylon wing nut that allows you to quickly cap your pool plumbing lines to keep water out during the winter. Known as expansion bolts, freeze plugs, rubber plugs, hole plugs, pipe or just pool plugs, you can use these expandable rubber plugs for pool returns, line cleaners and skimmers to prevent pipes from filling with water and freezing in the winter.
Details:
- Nylon wing nut
- Tapered rubber
- Top rubber diameter: 5/8 inch
- Bottom rubber diameter: 7/16 inch
- Length: 15/16 inch