Reddit reviews M1.5x5 Buna-N O-Ring, 70A Durometer, Black, 5mm ID, 8mm OD, 1.5mm Width (Pack of 100)
We found 1 Reddit comments about M1.5x5 Buna-N O-Ring, 70A Durometer, Black, 5mm ID, 8mm OD, 1.5mm Width (Pack of 100). Here are the top ones, ranked by their Reddit score.
Made of Buna-nitrile for use with a variety of fluids and hydrocarbonsCan be used across a wide temperature range from -30 degrees F (-34 degrees C) to 250 degrees F (121 degrees C)Round in cross-section to provide a seal between cylindrical overlapping surfacesDurometer (hardness) of 70A for resistance to penetration
I got a 100 pack from amazon, because every time my kayfun isn't hitting right I just swap a new one in (and it seems to help more often than not). Here is what I bought on Amazon, but I wouldn't be surprised if home depot sold the same thing. A 100 pack of rings is only ~2x as much as a kayfun spare part kit from vaperev.
One other thing I'd recommend is pre-lubing both the o-ring and the spot it sits with a few drops of juice.