I just ordered a zk1 unloader. Did the treads seem like they weren’t npt? The 3/8" “in” is npt but the bypass and “out” are 1/2" and don’t seem like they’re npt. I have some fittings to adapt down to 3/8" but they only want to screw on a thread or two. According to another thread the K7 has British threads or something. I wonder if the zk1 is the same way? I know @Racer uses one too so maybe he’ll know.
