Factory Model 4S-6EL 3 Way Flame Pattern with 13" lead length. Designed for use with the O.E.M.-style Pilot Ignition Systems. The electrode is permanently riveted to the pilot frame and the spark gap is fixed at 1/8". These pilots can be used to replace existing pilot assemblies or when retrofitting standing pilot applications when an exact replacement is desired. Comes with a natural gas orifice installed and a separate L.P. gas orifice. Pilot tubing size is 1/4". The 1830 Pilot Uni-Kits are aerated type pilots, combining the best feature of an incinerator type pilot and a target type pilot. These pilots have nonlinting characteristics, no air shutters or supplementary shields requiring assembly or adjustment.ROBERTSHAW 77303 Exact,
UNI-LINE 63090 Exact Uni-Line UPC number. Number may appear preceded by Uni-Line's vendor i.d. number, 662013.ex. 66201312345.