Maestrini cast DZR Brass raw water intake strainer with plastic filter gauze. This "AMALFI" series water strainer mounts on the hull of the boat and filters the raw water taken in on its way to the raw water cooling system. The top of the strainer is removable so the filter gauze can be serviced or replaced easily. The 1-1/4" BSP ports are located on the bottom of the strainer (inlet) and on the side of the strainer (outlet).