B1809904 circuit board for GUPI model furnaces.

Fits Models GDPI, GDPI050-3, GDPI075-3,
GDPI075-4, GDPI100-4, GDPI120-5, GDPS,
GDPS050-2, GDPS075-3, GDPS100-3, GDPS100-4,
GDPS120-5, GDPX, GDPX050-3B, GDPX075-4B,
GDPX100-5B, GDPX120-5B, GUN, GUN050-2B,
GUN075-3B, GUN100-4B, GUN125-5B, GUPI,
GUPI050-3, GUPI075-3, GUPI075-4, GUPI100-4,
GUPI100-5, GUPI120-5, GUPS, GUPS050-2,
GUPS075-3, GUPS100-3, GUPS100-4, GUPS120-4,
GUPS120-5, GUPS140-5, GUPX, GUPX050-3B,
GUPX075-4B, GUPX100-5B, GUPX120-5B, GUS,
GUS050-2, GUS075-3, GUS100-4, GUS125-5, PG,
PG024040-1B, PG024075-1B, PG030075-1A,
PG030100-1A, PG036075-1A, PG036075-3A,
PG036100-1A, PG036100-3A, PG042100-1A,
PG042125-1A, PG048100-3B, PG048125-1B,
PG048150-1B, PG048150-3B, PG048150-4B,
PG060100-3A, PG060125-1A, PG060125-3A,
PG060150-1A, PG060150-3A, PG060150-4A,
PG090200-3A, PG090200-4A, PG120250-3A,
PG120250-4A, PGX, PGX024040-1B, PGX030040-1A,
PGX036050-1A, PGX036050-3A, PGX036075-1A,
PGX042075-1A , PGX048075-1B, PGX048075-3B,
PGX048075-4B, PGX060100-1A, PGX060100-3A