These dust caps are Custom machined out of Acetal and made to fit any standard 2nd stage hose and reg fitting.
One use is to cap the oxygen solenoid and hose of your rebreather or cap the ends of the ADV hose It fits the kiss BOV, or can be used simply to protect and keep hoses clean.
ALSO FITS ANY STANDARD 9/16 REGULATOR FITTING
They come as a set 1 male and 1 female (one for the hose and one for the reg) Femal cap as a rubber seal inside and both have a hole so you can put them on a cord or a split ring
