H

Electrical conduits; electrical connection boxes; electrical outlet plates; electrical switch plates; electric outlet covers; weatherproof boxes for housing electrical components; electric junction boxes; electric junction box adapters

Flexible pipes, not of metal; flexible conduits, not of metal; flexible PVC pipes; flexible PVC conduits; non-metal pipe fittings for flexible pipes; flexible plastic plumbing pipes; flexible PVC foam-core pipes; non-metal pipe elbows for flexible pipes; non-metal expansion joints for piping; non-metal threaded reducers for piping; non-metal expansion couplings for piping; non-metal pipe connectors

Rigid pipes, not of metal; rigid PVC pipes; non-metal pipe fittings for rigid pipes; pipe fittings comprised primarily of plastic; non-metal sewer pipes; non-metal drain pipes; non-metal pipe couplings and joints; non-metal pipe adapters; non-metal pipe elbows for rigid pipes; PVC cement and primer; non-metal utility ducts; non-metal telephone ducts; non-metal utility duct fittings