19 Non-metal pools and spas, and parts and accessories therefor; fiberglass pools and spas, and parts and accessories therefor; fiberglass swim-in-place pools; pools and spas in kit form; fitted pool and covers, and parts and accessories therefor; motorized fitted swimming pool covers; pool cover retractors and guides for fitted pools; pool cover ropes, namely, ropes specifically adapted for use with fitted pool covers; fitted vinyl liners specially adapted for pools and spas; pool and spa enclosures; pool and spa parts and accessories, including liners, covers, steps, ladders, backs and wall panels, panel corners, braches, panels, wall braces, bracing supports, and coping; pool shells; spa shells; non-metal artificial rocks for creating landscape and waterscape settings and landscaping products; non-metallic building materials used in construction of swimming pools and spas, namely, slabs of concrete and aggregate materials composed of marble and cement for pool and spa finishes; non-metallic building materials used in construction of pools and spas; non-metallic paving and concrete products for pools and spas, including pavers, concrete blocks, concrete walls, and concrete panels; non-metallic pool and spa decks; pool and spa surrounds made of concrete, brick, stone, wood, composite, stone, or manufactured stone materials; non-metal fences and gates for enclosing pools and spas; pool and spa equipment containers; pool and spa equipment pads, and parts and attachments therefor; water pumps used on the surface of pool and spa covers to remove water that has collected on the top of such covers