The exposed shallow seal S trap bath waste sits underneath the bath. It is used underneath free standing baths where the waste pipe is visible. The shallow seal design means the whole waste and trap sits comfortably above floor level.The S trap should be used where the bath waste pipe goes into the floor. The chromed extension pipe can be used between the P trap end and the floor bend allowing the bath to be sited away from the floor waste position.It should be used with our exposed bath wastes (Pressflow or Plug & Chain), and the hot and cold water exposed shrouds.