If the tails of the new Kitchen Sink Faucets are nasty, then you will need a nasty plug to avoid damage to the line. One end of the plug suits on the nasty end of the faucet and the other end provides a relationship to the available provide tube joints.If you need to fit a monobloc, then you will require decreasing couplers, which joins the 10mm tube of the monobloc to the standard 15mm provide tube.Next, position the faucet in the increasing gap in the bath/basin making sure that the units have established yourself between the Bathroom Accessories and the sink .