A lot of times I need every 1/8 of room so I'm trying to avoid a reducer is why I'm looking. No luck finding what I need. Gauges are 1/4 NPT male as usual, but the test hose is nice and light weight but has 1/8 NPT ends. I can't find a no-leak quick coupler that fits 1/8 and 1/4 interchangeably, so far I've found the same series but different sizes so they won't work together.