The APOCALYPSE 4X4 is a redesign of the OFF ROAD 4x4 model with a post-apocalyptic theme: the purge passes through a skull motif on the stem, the base carries a flame motif, and the plate is a composite piece with helmet-styled details. The mouthpiece tube length is 470 mm, the stem's inner diameter is 11 mm, plate diameter is 190 mm, and the minimum base depth required is 250 mm. The central part of the stem is removable. The stem, mouthpiece, plate, plate washer, diffuser, and connectors are made of AISI 304 stainless steel, with an engineering-polymer base.