Many ECU manufacturers use the Tyco Superseal 1.0 connector. Motec, DTA, Link, Vi-pec, Omex, Emtron, Haltech and many others use this connector.
Sold in packs of 20 or 100 pieces
Like all connectors sold by Kiwi Connectors these are genuine OEM parts. In this case Tyco, part number 3-1447221-3, sourced from a trusted Tyco distributor in Europe.
Tyco spec sheets say this terminal takes 0.75-1.25mm squared (18.5 -16awg ) In practice this terminal can used from 24awg - 16awg.
Blanking plugs to fill empty spaces are also available - part E29