CHM-SWT Copper Heating Manifolds Home » Products » Trap Seal Primers » Manifolds Only » CHM-SWT Copper Heating Manifolds 72″ long with open SWT connections, 18″ connections, 4″ centers. Available in: 12″, 18″ and 24″ connections. Catalog Catalog List Pricing Current Catalog: TSP-2024 Return to Products