Replaced my existing sand filter with the cartridge filter system.
Built-in one way valve preventing water entering from wrong direction.
Running now for couple of days, filtering much better than old sand filter. Always had fine dust like particles at bottom of the pool, totally removed by new filter.
Happy with performance so far.
Didn't wait long for package to arrive at my house and product is good quality and easy to assemble, I'm very happy with this product and will gladly buy from this store online again.
