Open the jaws of a pair of channel lock pliers.
Place the open jaws over the angled protrusions on the squeeze clamp.
Squeeze the plier handles to pinch the protrusions together. This causes the clamp to expand.
Slide the squeeze clamp down the length of the hose until it clears the flange inside the hose. Release the pliers.
Pull the hose off the flange. Place the pliers back on the protrusions and squeeze them together. Slide the clamp off the hose.