6 RECTANGULAR ABOVE-GROUND METAL SWIMMING POOLS AND REPLACEMENT PARTS; METAL FENCING PANELS, GATES, LADDERS, PATIO DECKS AND WALKWAYS, AND METAL STRUCTURAL ELEMENTS, NAMELY BOTTOM CHANNELS, BRACES, BRACKETS, BUTTRESSES, SUPPORTS, AND TOP CHANNELS, AND REPLACEMENT PARTS, FOR RECTANGULAR ABOVE-GROUND METAL SWIMMING POOLS