Marinco - 103RN - Weatherproof Cover With Threaded Sealing Ring, 20A/30A

These weatherproof covers are constructed of heavy-duty vinyl. The 103RN will only fit on female 20 or 30 amp connectors and provides a superior seal when fitted with a 20 or 30 amp male plug using a 102N boot and a 110R sealing collar. The 103RN boot will not fit on a 20 or 30 amp male plug.