1/4" M Air Hose Quick Connect Adapters Gridfinity Holder

See the final image for what fits in each column, the first column is for accessories with male fittings attached to sit in.

In v2 the 2nd column that holds male fittings was loosened a bit, at first after printing v1 holds the connectors quite tightly off of my machine, though after inserting/removing several times it's now only snug.

Uses half size grid, fully compatible with normal 42mm base plates but allows placement ½ unit offset.