These o-ring sealed bungs are made to fit all HOSE and TUBE fittings on the CLASSIC/VISION AND EVO
These caps will fit all parts of the loop that need to be capped, be it the head loop hoses(small bungs), T-pieces DSV or the canister Tube(large bungs).
I uses these alot to isolate parts of the rebreather when looking for small annoying leaks and to just keep contaminates out of the rebreather when it's dissasembled
