Simplifies plumbing by allowing you to plumb multiple raw water consumers to a single inlet, eliminating the need for multiple thru-hulls and strainers. They are better than tee fittings because they reduce restrictions to downstream devices.
The male barbed end connects to the "prime consumer," and the male threaded end screws into a seacock or strainer outlet. The female threaded ports are for secondary consumers like air conditioners or generators. Match manifold outlet hose size to the inlet hose size of the prime consumer. Heavy-duty cast bronze.