Filling probe not included in the deal, sold separately. If you came here looking for the Q/C fitting for the probe, please see;

• MALE Q/C x 1/8" BSP FEMALE THREADING

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A set / pair of beefy O-rings for the SUMATRA filling probe.

These are nitrile, featuring the following dimensions;

• OD: 8.35mm
• ø : 2.35mm

In terms of fitting these on, please exercise caution. Using a sharp edged tool can slide your O-rings or otherwise, undesirably marring your filling probe.

Please have a look at the video hereunder -this is just a larger / scaled-up version of how its done. For more minute / fidgety work, please look at investing in an O-ring pick. You can pick up a set for cheap from TAKEALOT.