Wow this is beefy compared to the GC blocks.View attachment 9067
This was an experiment for a guy that worked really well. The adjustment screws are easy to get to, and I bent an old license plate to hang over the next solenoid down so when you service the one above the soap doesn't dribble onto the ones below. The 1 1/2" long nipples leave room to change a solenoid without removing the coil or stem, which I've had to do a few times over the years.