Rusty, the one on the valve seat is 7 x 1.5 mm. I had a leak and that was the only one that I didn’t buy when I used the schematics to order. On the FX master series Ernest points that one out. Tyler
Thanks Tyler. Did he mention if it was NBR 70 or 90? Most are 70, so I guess I'll assume that, or get both next time I place an order.
Rusty
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