Tapware standards in New Zealand Home › Forums › Public Forums › General Plumbing › Tapware standards in New Zealand This topic has 1 reply, 2 voices, and was last updated 21 years, 6 months ago by johnws. Viewing 1 reply thread Author Posts 16 Sep 2002 at 12:13 am #275785 MasterPlumbersKeymaster Anyone able to help me by advising what standard tapare sizes are in New Zealand for residential bathroom plumbing? 16 Sep 2002 at 2:09 am #292883 johnwsParticipant Typically 15 & 20mm BSP inlet threads. Author Posts Viewing 1 reply thread You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In