Here you can see the recesses in the mold on the bottom of the container. They are meant to fit into the top of another container and interlock. This makes them very stable when stacked.
|5 Gallon Blue Plastic Closed Top Jerrican Rectangular High Density Polyethylene
UN Rating: UN3H1/Y1.9/150
Our 5 gallon blue delex is a blow molded container with an integral handle. It has a 2" buttress plug with a 3/4" NPS (National Pipe Standard) reducer and is included. UN3H1/Y1.9/150 & UN3H1/Y1.4/100 when vented. This container is food grade. We stock this in blue, black (not food grade) and natural. Need a vented plug? Our Item # SPP-L10V-9WL is a 2" EPDM coarse thread microporous vent plug sold separately.