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Data studies from 69 computed fitments
Original rankings computed from our own compatibility and specification dataset, covering 39 parts and 69 checked combinations. Every figure is a real count from that data, with the sample size shown and the method stated. The tables are free to cite and republish with a link.
Data as of 2026-09-05. Source: our own compatibility and specification dataset.
The most broadly compatible parts5 · MFL male flare (1/4") fits 5 of the combinations we checked directly, more than any other of the 18 parts in the dataset.The parts most likely to need an adapter100% · Duotight 9.5mm push-in needs an adapter or does not fit in 100% of the combinations we checked, the highest share in the dataset.Parts ranked by size / threadW21.8 x 1/14" (22 mm, 14 TPI) · W21.8 CO2 cylinder valve has the highest size / thread in the dataset, at W21.8 x 1/14" (22 mm, 14 TPI).