The Apollo 45681-217APO is a deckhead mounting box, which protects the bases, sounders bases and sounder beacon bases from the ingress of water or other liquids.
The Apollo 45681-217APO deckhead mounting box is mostly used on its own, but there are applications where an extension sleeve or an adapter ring is required. The Extension Sleeve is required when fitting heaters or deep bases, while the Adapter Ring is needed for fitting sounder bases, beacon bases or sound beacon bases. The Extension Sleeve and the Adapter Ring are sold as the Accessory Kit, PN 45681-218.
The Apollo 45681-217APO Deckhead Mounting Box has 6 cable access ports for M20 glands and is secured to the mounting surface with 2 5.4mm holes in the webs
The 45681-217APO Deckhead Mounting Box can be used with the following bases:
Discovery Marine, Orbis I.S., Orbis Marine, Series 65, XP95 I.S.