For the 6100 the rail kits are either 6060.250 or 6200.255. 6060.250 is in stock, 6200.255 is out of stock for 2 more weeks. For a magnet holder you need three parts, 2 would have come with the rail kit that came with the pump, they are 6200.230 and 6080.400 and the magnet for up to half inch glass is 6080.500 and for 3/4 is 6200.500.