MAD Industries FlareNut
MAD Industries Line Set Brass Adapter, 3/4 Female Flare x 5/8 Flare w/ FlareNut
A nice touch here is the easy grip contour that matches the shape of your fingers.
MAD Industries Line Set Brass Adapter~3/4 Female Flare x 7/8 Flare w/ FlareNut
This ratchet socket wrench handles repetitive tasks without wearing out quickly.
MAD Industries Line Set Brass Adapter~5/8 Female Flare x 3/4 Flare w/ FlareNut
What I like about U-blox is the continuous improvement through firmware updates.