21 Ft Automatic Drain Pool Cover - Easy Installation Round Protector for Above Ground Pools and Hot Tubs, Dustproof Winter Cover

About this item

• Automatic Drainage: After connecting with the drain port in the pool, it can be drained automatically. Pool cover pump functionality is possible. The water level on the cover can be controlled by blocking tube after the water has accumulated. Preventing the pool from being damaged by the accumulated water (Tip: In windy weather, it is recommended to keep some water on the pool cover to protect the cover and the pool) 12FT, 15FT, 18F, 21FT Options Show Drainage Features
• Pool Cover Material: Choose 420D colored woven polyester fabric (color fastness rated up to AFSL 4). The SIHAIAN round solar pool cover utilizes high-standard eco-friendly materials. It ensures that no harmful substances are released when exposed to sunlight, maintaining clean and hygienic pool water. Safe for skin contact. The 420D black fabric effectively absorbs heat and prevents sunlight reflection, keeping the water warm. 🌞420D Sturdy Tear-Resistant Colored Woven Polyester Fiber🌞
• EXCLUSIVE TIGHTENING DEVICE: SIHAIAN black pool cover hand sews the exclusive tightening device inside the Pool Safety Cover, the tightening device can help the user install and remove the round pool cover quickly. After installation. The pool can withstand adult males rolling around on the SIHAIAN solar pool cover when it's full of water. Strong stability against wind, rain, snow, and other adverse weather conditions (🔧See 24FT, 28FT, 30FT, 33FT video for installation results🔧)
• EXCELLENT SEWING: SIHAIAN round swimming pool cover all connections are all double thread sewing and paste waterproof tape. Waterproof tape prevents rainwater from flowing into the pool water and contaminating it. Double thread sewing makes the whole cover have excellent above ground pool cover tear resistance. Ensure absolute protection even in bad weather conditions, increasing the life of the pool and pool water 👉🏾Daily use see 6FT, 8FT, 10F, 16FT video
• Take Care to Choose the Right Size:🌞21FT Steel Wall Above Ground Swimming Pool select 22FT Pool cover.Choose one size up🌞21FT General Above Ground Swimming Pool please buy the corresponding size, select 21FT Round pool cover. NOTE:(It is recommended to measure the diameter of the pool so that it is not too small to be used) Please measure the diameter of your pool before purchase for better drainage function and quick tightening function!