Abstract: An integrated plumbing system comprising a plurality of interchangeable and interengagable parts which is especially useful in conjunction with boats or other marine vessels. The plumbing system includes a through-hull unit, a mounting unit, a ball valve and a plurality of components useful therewith. The components, including the valve, are made of a strong, non-corrosive, non-metallic material, in particular, a plastic-type material known as MARELON. The valve and associated components and fittings provide various configurations of units which are adapted to numerous plumbing requirements. The mounting unit permits close-coupling of the system to provide enhanced lever ratios in the event accidental side loads are applied to the system.

Abstract: A life-saving flotation device which includes an improved life buoy design together with appropriate straps therein and attached thereto, together with suitable hardware comprising hooks and rings for facilitating life-saving operations.

Abstract: A strip which is attached to or formed with a sail, adjacent the luff edge thereof, and which improves the furling operation relative to the sail and permits improved mast design.

Abstract: There is described an extendable telescoping pole which can be locked in an extended position. The pole includes a rope or line which can be manually adjusted to thereby continuously adjust the length of the pole. The line can be locked in position to assure that the pole remains at the appropriate extended length.