8x3 1 2x1 1 2 20 GRT RUB BRICK PLIERS LONG NOSE this proprietary ceramic disc cartridge 5110925KEVO2LO3DB this proprietary ceramic disc cartridge surpasses conventional durability standards and withstands harsh conditions Constructed with a polypropylene outer shell the granular activated carbon (GAC) is packed between an internal pre and post filter to reduce the release of carbon fines commonly associated with GAC style cartridges MARSHALLTOWN brand Rub Bricks are Made in the USA with Global Materials MARSHALLTOWN Rub Bricks are the best Masonry tool for cleaning bricks as well as dressing down and removing form marks from concrete