Laminated Filters with Collectors have top sand charge lid with 300 mm diameter equipped with an easy to read pressure gauge and with manual air vent. The Laminated Filters have water purge in the lower part of the filter facilitates the maintenance operations. The Laminated Filters comes fitted with corrosion-proof collectors and diffuser that enhances the capacity of filtration. The Laminated Filters can be used in spas, private or semi commercial swimming pools. The Laminated Filters have mirror finishing and are available in laminated fibre glass reinforced with polyester resin. The Laminated Filters with Collectors has multi port valves.