speed fit...ummmmm ok for a diy bodge as hi spec said,as for the spec they r good,i pressure test candidates work with sppedfit attatched to a hand pressure pump for their 6129 technical certificate in plumbing reaching 30bar which is very high as domestic water supplies are only at around 1-4bar on the mains but they need extra care when fitting if u use out of round pipe or painted this can damaged the seals inside the only plus to speedfit is they can be reused,removed easily via a small tool to push down a release collar better than hep20 counterpart,as a rule of thumb its best to leave most plumbing aspects to the professionals who have,like my self,studied in the massive knowlegde base there is in the plumbing world,tricks of the trade etc,as it will,i know cost money but in the long run save u money
dazzlin
May 2007