Check the listing for details. Hayward ProGrid DE Pool Filter Top Collector Manifold | DEX2400C. Condition: New. Listed at 84.99 USD. The Hayward DEX2400C is the best replacement for a malfunctioning top collector manifold in an inground pool. Air leaks in valves caused by a faulty manifold can harm your pool system. This replacement part is finely constructed to ensure proper flow and pressure through filters and valves. Using this replacement can help you avoid costly replacements or repairs. Replacing your old manifold with the Hayward DEX2400C keeps your pool system running efficiently.The Hayward DEX2400C is the best replacement for a malfunctioning top collector manifold in an inground pool. Air leaks in valves caused by a faulty manifold can harm your pool system. This replacement part is finely constructed to ensure proper flow and pressure through filters and valves. Using this replacement can help you avoid costly replacements or repairs. Replacing your old manifold with the Hayward DEX2400C keeps your pool system running efficiently.