Ordered one 2.5 gal container. Should have ordered 2. Instead of shipping in the original 2 x 2.5 cardboard box it was repacked with foam peanuts in another box. Arrived damaged. Neck severely bent. No THIS SIDE UP stamp on the box. Not a good way to handle or ship chemicals and glad it did not pop open in transit. Had to use a crowbar to straighten it out which then had to be rinsed off causing chemical exposure and rinsate problems. Strongly suggest you only order 2.5 gallons containers in quantities of 2.