Replacement Gaskets for your BrewBuilt Mash Tun. These are custom pieces we've designed for the BrewBuilt Mash tuns. Their only purpose? Assist you in brewing the best beer possible.,Solid single piece silicone molded construction will last you for a number of brews, but whether you lose yours, or manage to break it, we have replacements.,For a complete False Bottom Kit that includes the necessary Screen and Pickup Tube, see our BrewBuilt Mash Tun False Bottom Kits. Or for a complete Mash Tun, see our BrewBuilt Mash Tuns.