To remove, pull the crisper out to full extension, lift the front up, and pull straight out.
Lift the front of the cover up with both hands until it detaches from the back wall of the cabinet, and pull it out.
To reassemble, insert the cover into the refrigerator with both hands and lower it onto the guides.
Slightly tilt up the front of the crisper, insert it into the frame, and push it back into place.