Choose Options Compare Quick view Doc 24mm RDA by Plan B Supply Plan B Supply MSRP: Now: $64.99 Was: Doc 24MM RDA By Plan B Supply Co. The Plan B Doc RDA is a 24mm 2 post side breathing RDA designed comes in multiple color options and is BF ready. Super simple 2 post design with large post holes for even the biggest of builds. ... MSRP: Now: $64.99 Was: Choose Options Compare Quick view