great rack.... but i prefer terrarium.
I built 14 terrariums ( self made ) and I have 3 racks.
every terrarium have a single thermostat with 2 temp set and every terrarium have heat tape.
it's the best method ( I think and I tested ) to keep ball pythons because my python are all ok , perfect health.
I'm so crazy to build terrarium.

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2.7 Wild B.P.
5.6 Morph