PILOT W/ELECTRODE AND WIRE.;DOES NOT COME WITH ORIFICE. OLD ORIFICE CAN BE RE-USED, OR;YOU CAN ORDER AP #26-3715 FOR NAT, 1/4" CCT.;OR AP #26-4017 FOR LP. .014", 1/4" CCT.;GROEN BPM-30G(S), BPM-40G(S), BPP-(30G, 40G);TDH-20, TDH-40, TDHC-20, TDHC-40