This is a replacement Raypak Digital Control Board Kit for Control Box.
It is used with various Raypak heaters and heat pumps including Models R5350, R6350, R8350, RHP 2350ti, 3350ti, 4350ti, 5200, 6200, 8200, 6300, 6300ti, 8300ti, 8320ti, P5350, P5310ti, and P6310ti.
