Bulkhead Fitting for Coolers - 1/2 in. FPT x 1/2 in. FPT recipe Even the most perfectly sealed

Even the most perfectly sealed keg is susceptible to oxygen ingress through the hatch O-ring—yes

a 6-gallon Fermonster wide-mouth carboy

Periodically apply a tiny amount of food-grade mineral oil to the screw threads to ensures smooth mechanical action

Dual heating element control (1900w and 500w)

Bulkhead Fitting for Coolers - 1/2 in. FPT x 1/2 in. FPT recipe Even the most perfectly sealedGrey, high temp plastic bulk head fitting for putting a fitting into a plastic cooler (rectangular and round coolers.) Has 1 2" female threads on the interior. It requires that you drill a 1" hole all the way through a cooler and a 2. 25" in the outer shell plastic and insulation. This is the same bulkhead fitting we used to use to install thermometers and ball valves in Rubbermaid brand coolers. Replacement part for pre 2014 modified coolers.