Want to use your Engel DeepBlue cooler as a live well and looking for a solution to get air or oxygen tubes into your cooler? We have the answer. Our new thru-lid fitting allows 2 air hoses into your cooler through a hole in the lid. Simply drill a hole through your cooler lid and screw the two fittings together. We do recommend adding a small bead of sealant like 3M 5200 to get a tight seal. The fitting comes with a plug so when not using your cooler as a live well it can be easily closed tight.