skimmer winterization Plug effectively absorbs ice expansion, safeguarding your skimmer housing from cracking during harsh winter freezes. the hassle of draining your pool below the skimmer every winter-our skimmer winter tube allows you to keep your pool full. Simple to install, just screw in place after ensuring the plumbing is completely emptied for a hassle-free winterization process. Color: Blue Material: plastic Different batches may have slight differences in appearance and color Package Contents: 1 x Pool skimmer Plug Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.