Deck mounted bath shower mixer taps are similar to bath filler taps  but with the added advantage of a hand held shower head. Deck mounted shower mixer taps are attached to your bath mounting edge via mouting holes dilled into the bath. Depending on the bath this may be in the centre of the bath, one of the ends of the bath, or even the corner of the bath. Bath shower mixer taps have a single spout and mix the hot and cold water in the valve and have a button, leaver or swith to divert the flow of water from filling the bath to the shower handset.