Gerber Plumbing Fixtures products earn trust through enduring performance and reliability, and replacement parts are no exception. Gerber’s tank-to-bowl assembly kits provide a high-level of quality and convenience. The tank-to-bowl bolts are all brass. This kit also features a no-tools double wing nut connection for maximum tank sealing and minimal breakage. For added security and safety, two rubber channel pads provide a stable tank-to-bowl connection