Stable & Secure Frame: 3-layer PVC support bands surround the EVAJOY 16ft x 48in swimming pool, keeping the robust legs securely in place and offering a superior stability to the frame walls in comparison to inflatable pools. Robust PVC Construction: Tailored to resist the rips, punctures, wear, tear and abrasions associated with regular use, this metal frame swimming pool is designed with a 3-layer strengthened PVC liner that prevents it from fading in the direct sunlight. Keeps Pool Water Crystal Clear: Keep cool in the summer heat while you enjoy the superior water clarity maintained by the included sand filter pump with 7-way valve and pressure gauge. Rust & Corrosion Resistant: The rugged galvanized frame of the EVAJOY above-ground pool is powder-coated on both sides, protecting it from rust and corrosion and lends a remarkable strength and durability to the pool set. Easy 3 Step Assembly: Enjoy a splashing good time with your family and friends all summer long in only 3 steps: simply lay the pool on the flat ground, assemble the frame, and fill the pool with water.