I do need to add another piece of information I learned during my bought of Fuelsafe incontinence. Aside from the cost (I can’t help but feel gouged, when the offer other replacement bladders at 1/3 the cost, but I digress.) Fuelsafe uses polyurethane for the bladders, which is not repairable. Any puncture or tear requires replacement.
In talking with the guys at Aerotech, typical reinforced rubber aircraft bladders are repairable when damaged.
One more thing to think about before you write the check to Fuelsafe!
http://aircraftfuelcellbladders.com/aboutus.html
Jason