Orifice Adapter #72 This Adapter Will Renew From 80% To 90% Of All Orifices, Enabling The To Use A Higher B.T.U. Gas. Obsolete As Well As Modern Appliance Orifices Can Be Renewed Efficiently At Minimum Cost. The M-100 Adapter Is The Most Essential Item In The Serviceman'S Kit. Very Often, The Adapter Saves The Serviceman A Trip Back To The Shop, When He Does Not Have The Proper Replacement. The Existing Cap Or Plug On The Appliance Can Be Quickly Renewed On The Job, Saving Time And Money.