For Versi-Heat Models: 6100, 9100, 8400, 8600, 9400 & 9600 series, prior 5/03. 1-1/2" bulb length, 1/4" diameter 76" wire length 3 wire, 4 pin connector.
1-1/2" bulb length, 1/4" diameter 76" wire length 3 wire, 4 pin connector.