Hi!
I recntly bought a washing machine, I noticed that the inlet screw on machine hose is bigger(33mm) than the wall tap opening(26mm), is their a connector available for this in market and what it is called.
Thanks

In the USA, standard washing machine connections - Male and Female - are 3/4" BSP thread. I am sure there is a conversion piece that will convert from 33mm down to 26mm size. Or even better, it may be quicker and less painless if you change the washing machine supply valves for the valves of correct size.

Hope that helps. Back to you. Milo