Size:Stainless steel filter head size is height 40mm, diameter 23mm, DN15, thread outer diameter 20mm. PVC joint with an outer diameter of 1/2" inches (you can insert and connect a 1/2" PVC DN15 water pipe) Easy to install:DN15 inch stainless steel filter,The PVC joint has a diameter of 0.78inches and can be inserted to connect 1/2" inch PVC DN15 water pipe. Widely applicable:Filters are applied to swimming pools, fish tanks, pools, water pumps, wells, etc. Material: 304 stainless steel filter head, corrosion-resistant, filter mesh easily filters impurities. Packaging: 1pcs * DN15-1/2" 304 stainless steel filter head and 1 * pcs PVC connector with an inner diameter of 1/2" DN15 inch stainless steel filter cover connected to 1/2" PVC DN15 water pipe, suction hose strainer used to remove debris and reduce solid entry