This is the genuine Fluidra replacement manifold arm assembly designed for the Millenium Sand Filter Top Outlet in 450 mm and 500 mm tank diameters. The manifold (also called the lateral collector or header assembly) sits at the base of the filter tank and distributes water evenly across the sand bed during filtration, then collects filtered water for return to the pool. Replacing a cracked or broken arm assembly restores full filtration efficiency and prevents unfiltered water from bypassing the sand bed.<\/p>\n
This assembly is engineered specifically for the Fluidra Astralpool Millenium Sand Filter Top Outlet series with 450 mm and 500 mm tank diameters. It is not interchangeable with side-outlet Millenium variants or other filter families such as the Cantabric, Berlin, or Star Plus ranges. Always verify your filter’s tank diameter and model reference before ordering to ensure a correct fit.<\/p>\n
As an OEM Fluidra part, this manifold arm assembly is manufactured to the exact tolerances of the original, ensuring a leak-free seal and correct flow distribution across all lateral arms. Third-party alternatives may differ in arm length, connection thread, or plastic grade, leading to poor filtration, sand bypass, or premature failure. Using a genuine part also keeps your filter within Fluidra’s warranty and service guidelines.<\/p>\n
Fitting this assembly requires draining the filter tank, removing the multiport valve or top head, and carefully extracting the existing manifold before lowering the new unit into position. The lateral arms should seat firmly in their housing slots without forcing. While a competent DIY pool owner can undertake this task, professional installation by a qualified pool technician is recommended to avoid damaging the tank threads or lateral arm fittings.<\/p>","protected":false},"excerpt":{"rendered":"