Hi peggy. John sent me to you and he says Hi! I have a 1988 Bayliner 2455, 23 ft cruiser with a Bryden head in it. I don't have the model # at hand at this moment, but the flush mechanism is a simple upright hand pump. I was wondering if there is availability of seal kits for such a pump. Tomorrow I will have the model # of the head. I am in Melbourne, Fla, but will order from anywhere. If you can help me out, I would be most grateful. Til tomorrow.