The gray frame set is a replacement for select Steel Pro MAX 14 ft. x 42 in. and 14 ft. x 48 in. round above ground pools. This frame set includes the pins, pin gaskets, footings and T-connectors needed to assemble the above ground pool. If you need a complete frame set, you’ll also need box 1 which includes the top rails and vertical legs (42 in. pools need P06526, 48 in. pools need P06496). These frame pieces easily connect to your existing pool liner, with no additional tools needed, to get the family fun going again!