A siamese hose appliance is used to combine multiple hose lines into a single line. It usually consists of female inlets and a male outlet.
connecting two or more pipes or hoses or having such a connection; "a Y-shaped siamese joint"; "siamese fire-hose lines"
Hose fitting (preferably gated) for combining flow from two or more lines of hose into a single stream; one male coupling to two female couplings. see also: Reversible Siamese; Wye