Ive used the rectus 26 around 2 years and replaced 5 times male and female it is a lot better fitting than the 21 but intrested to find out if Q.R or Hozelock maybe better I have 4 vans running 8 hose reels Some times the guy's can,t disconect them you will find that the male side will ware quicker than the end stop but you still need to buy the pair so as not to ruin the new fitting.