Reddit reviews Febco 1/8" Male x 1/4" Female Test Cock TCS-18
We found 1 Reddit comments about Febco 1/8" Male x 1/4" Female Test Cock TCS-18. Here are the top ones, ranked by their Reddit score.
I could never find anything that would fit. You can replace that test cock with one that has more standard fittings: https://smile.amazon.com/gp/product/B00I6698JO/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1