Pls send me 4mm to 3
mm for me

 Greeting Sir ,
               I didn't get a reply from u . I am  In need of those couplers already  I sent a PM regarding  the size and my contact also.

Hi,
I have not logged into Rcindia for the past couple of days... I do not have any in stock as of now.. However I have a few more requests come to me.. .Will get this made for you. Have replied to your PM .

Shreekant