Non-metal junctions for plumbing pipes; connecting sockets for plumbing pipes; non-metal couplings for plumbing pipes; non-metal coupling sockets for plumbing pipes; non-metal junctions for hoses; connecting sockets for hoses; non-metal couplings for hoses; non-metal coupling sockets for hoses; non-metal junctions for pipes; connecting sockets for pipes; non-metal junctions for drip tapes; connecting sockets for drip tapes; non-metal couplings for drip tapes; non-metal coupling sockets for dr...