Looking to build a proportioner system in the near future. I know that what’s usually recommended is the GF 523, but that only goes up to 1/2", which is definitely too little for an AR45 pump. Am I missing something, or do 1" GF valves not exist. Another option I looked at was SM metering valves, but pretty steep at $300. What would y’all do?
SM Valves:
