See 2nd picture – There’s “surface” marks and dirt because the plastic cover was removed. Other than that this is new. Filters up to 300 Square feet. Equipped with air Release Assembly. During cleaning, contaminants are easier to remove, thereby extending the filter cloth’s service life. The black end caps are made from chlorine-resistant materials using high-pressure moulding, ensuring durability and resistance to cracking. Combining the latest’dirt locking’ technology and a unique three-leaf woven fabric filtration structure, its filtration capacity is approximately 40% higher than that of ordinary filters. It can effectively filter impurities in swimming pools, such as hair, dirt, sediment, sand particles, etc. The pressure-welded joints are evenly distributed and have passed NSF/ANSI50 testing and certification. Filtering high-quality water and allowing you to relax in pure water is our original intention, which we have been pursuing for ten years in the production of high-quality swimming pool and hot spring filters.