Food Grade Stainless Steel. Temperature Control Coiled Lid with Gasket. This is our standard 4" threaded lid, and comes complete with gasket. The length of the coils from the bottom of the lid is approximately 18 1/4".  

This Coiled Lid will cool the 13.5g Gallon Conicals.

This Kit contains The Coiled Lid & Connectors.

An InkBird Temperature Control Unit will automate your Temperature Control.