Is your cooler missing a foot somehow? Fortunately, replacement feet are available from Bison Coolers and are sold in packs of 2.
These Bison replacement feet are (GEN1) are direct replacements for GEN1 Coolers only. These were manufactured between 2012 and 2017. If the feet on your cooler don't look like these, then you should reference the GEN2 Bison Replacement feet.
