Waterway Smart Clean UltraClean Sand Filter Tank Stand Base (672 5301) aircontrols A header is useful because A header is useful because it helps route water into and out of the heater while also serving as one of the major structural and sealing points in the assembly 5 kW coil element is designed for compatible Laars applications that use a 6 inch 240 volt element and stainless steel flanges only The Waterway 672 5301 tank stand and base is designed for compatible Smart Clean and UltraClean sand filter applications Base components matter because a damaged or compromised stand can affect how securely the filter sits after service