Using the 38mm winter swimming pool pipe antifreeze stainless steel plug is a simple yet effective way to winterize your pool. By blocking the pipes, this plug prevents water from freezing and expanding, which can cause cracks and leaks. Its stainless steel material ensures that it remains rust-free and functional for many winters to come, making it investment for any pool owner. Features -Color:Black -Material:Rubber -Size:4.00X3.80X3.80cm/1.57X1.49X1.49in -Convenient installation: the pool antifreeze plug is designed for convenient installation and removal, making it easy for users to place and remove it as needed -Effective winter pipe protection: this plug is ideal for protecting pool pipes from freezing during winter, ensuring the longevity and functionality of your pool's plumbing system -Standardized 38 mm size: with a standard 38 mm size, this plug fits most pool pipes, ensuring a and easy installation -Prevents blockages: by preventing blockages in the pipes, this plug protects your pool facilities, ensuring smooth operation and reducing maintenance needs -Broad applicability: suitable for various types of pools, including residential, public, and , this antifreeze plug offers broad applicability and reliable protection Package list: 3 x pool antifreeze plug