The Amphora Society six gallon boiler holds a 5-gallon carboy of beer or wine with plenty of head space. Hi-quality 6-gallon stainless steel boiler, complete with adapter for PDA-1. INDUCTION READY, with thick aluminum core in base which spreads heat evenly, reducing chance of scorching contents. custom-formed silicone gasket seals the lid, which can easily be removed for cleaning. Other sizes can be custom made, contact us for details.