11 Water supply apparatus and sanitary installations, namely, sinks for kitchens, bathrooms, and toilettes; sanitary fittings, namely, pipes being parts of sanitary facilities, tub and shower control valves, bibbs, cocks and traps; hot and cold water taps; tub drain and overflow control devices, namely, strainers for plumbing drains, tub parts in the nature of tub overflows; self-closing water taps; taps for wash stands, bathtubs, sprinklers and bidets; hand bowls, namely, hand sinks; hand and head showers; shower sets consisting primarily of showers, hand showers and shower bases; massage hand showers; showers; shower systems consisting primarily of showers, hand showers, shower bases, spray nozzles and heads for showers and tubs; hand shower holders; hose connections for aforesaid showers; shower screens, namely, shower cubicles and shower panels; shower seats; shower panels; complete shower and bath cubicles; bathtub mats, namely, fitted liners for bathtubs; grips, namely, non-metal and metal handles for gripping for use in bathtubs and showers sold together as a unit with the bathtubs and showers; grab rails, namely, non-metal and metal grab rails for bathtubs and showers sold together as a unit with the bathtubs and showers; bathtub grab bars, namely, non-metal and metal bathtub grab bars sold together as a unit with the bathtubs; hand rails, namely, non-metal and metal hand rails for bathtubs and showers sold together as a unit with the bathtubs and showers; toilet seats; parts and accessories for all the aforesaid goods included in this class, namely, bath tubs and shower trays, shower doors, flexible pipes being parts of shower plumbing installations