1" Pitless Adapter, For 4" Lead Free Submersible Installation, Connects Water Pipe To The Side Of The Well Casing Below Frost Level and The 1" Connects To The Pipe Coming Up From Your Submersible Pump, Makes A 90 Degree Elbow Through The Side Of The Well Casing To Discharge The Water Line Under Ground, Top Of The Pitless Half That Connects To The Pump, Has A 1' NPT Threading Into It That Does Not Go Through, This Allows You To Screw A Piece Of Pipe Into It To Lift The Pitless Adapter and The Pump, Up Out Of The Receiver Half To Disconnect, Use With TV #s 123-323, 123-324, 123-325, 123-326, 123-327, 123-328 and 123-332.