A place in Hunslet Leeds is good .
I have a male £2 one on my pole hose , fits into the female end on my microbore which acts as a valve once you unplug the £2 male .
I had rectus but they leek after about a week and cost a fortune .
Called AIR force pneumatics
Google it and then phone him Naz , a very very friendly bloke who can't do enough for you , I'm sure he'll post them to you
Phone number is 07825 335 790
Tell him kempy gave you his number , he'll send and knock a bit off .
Open Monday to Saturday 0800-1700