i use the same tubs the handle is aalso the flip over the lid edge locks they work great. I seen the handles in 2 colors so far a green and the ( harder to find grey) the grey are the 41 qt tubs. I use the lids but I designed my racks ot fit the tubs with lids on and a little more room incase I need a larger tubs later on. My little 1700 gram girls aare filling up the tub fast and that without a hide. As for heat I use the flexwatt on a t-stat control ( since i have bad luck with dimmers failing me) ,and they work great I need ot reduce the size of the water bowls or put more vent holes i nthe tubs as the large bowl I use is allowing for too much humidity to condense on the sides of the tubs. ( need to make an air pump to blow warm air in ad the humid air out lol ( off to the pet shop for fish air pumps lol )
I say when making the holes makesure to remove the bur edges ( on the inside at least) to prevent the snake from rubbing the nose or other parts on them and possibly cutting theirself on it. I drilled my holes ( slowly to prevent cracking the plastic ( happens when you push too hard) and then took a hobby knife/razor blade held almost flat against the tub and removed the burs.
hey robin post a pic of the lid with vent hols for me please