PLUMBING AND DRAINAGE PRODUCTS-NAMELY, ROOF DRAINS, SHOWER DRAINS, FLOOR DRAINS, CESSPOOLS, FLOOR GRATES FOR COVERING DRAINAGE TRENCHES AND DRAINS USED TO CONVEY WATER FROM OPEN AREA WAYS AND FLOORS INTO WATER LINES, SWIMMING POOL DRAINS AND FLUSHING INLETS, WALL CLOSET AND LAVATORY CARRIERS, CLEAN OUT FITTINGS FOR PERMITTING THE CLEANING OF PIPE LINES AND FITTINGS CONNECTED THERETO, ACCESS BOXES FOR OBTAINING ACCESS TO VALVES AND FITTINGS BEHIND WALLS AND UNDER FLOORS, WATER SUPPLY HYDRANTS OF THE POST TYPE AND STREET WASHER TYPE, TRAPS FOR USE IN PLUMBING WASTE LINES TO PREVENT ESCAPE OF SEWER GAS, HYDRANT CESSPOOLS, CELLAR TRAPS, PLUMBING FITTINGS AND ASSEMBLIES CONSISTING OF PIPE FITTINGS, FIXTURE CARRIERS AND PLUMBING SPECIALTIES WHICH WHEN COMBINED PROVIDE A SANITARY PLUMBING DRAINAGE SYSTEM, PIPE JOINTS AND ADAPTORS, PLUGS FOR CLOSURE PURPOSES IN PLUMBING WASTE LINES, SUPPORTS AND COMBINED PIPE FITTINGS AND SUPPORTS FOR CONNECTION TO AND SUPPORT OF PLUMBING FIXTURES SUCH AS WATER CLOSETS, LAVATORIES, SINKS, AND STERILIZERS