It is an integrated filtration and recirculation engine room for pool water, fully enclosed in a sealed chamber. The chamber is made of reinforced polyester and also includes a reinforced easily opened lid. It consists of a sand filter and recirculation pump, a manifold valve, pressure gauge and five ball valves for the bottom, the skimmers, the cleaner, the drainage and the inlet. Assembled and tested at 1,5kg / cm2. Filtering rate 50m3 / h / m2 No special machinery space construction required. Suffices to place cleaning concrete at the base and gravel on the perimeter and to assist water draining. The advantage is that it can be mounted either next to the pool in a hidden layout, or at a distance up to 5m from it, depending on your space and preferences. Ideal for pools with small-scale permit and compatible with the applicable Law.