I sprung a leak in a fill hose that is made of unobtainium(weird ball flare threaded nut connector). In my parts box I found unuf pieces to convert the weird connector to male/female foster. The two new brass female Foster connectors are lose and leak past the 0-ring. The two stainless steel male foster connectors snap in nice and snug.....but they are tapered pipe thead instead of parallel thread and won't work. Are there two different sizes of foster connectors? The culprit is the brass connectors and not the male connector