... pumps,valves,etc 2)OEM is welcomed 3)Faster installation Tank Accessories Ring Joint Gasket* Size:pls refer to the picture ... :Leakage-proof,odor-proof,Oxgeon-proof,anti-bacterial.* Function:Good seal performance,long lifespan.* Usage:Applicability fit for various toilet,faucets ... supported.* Catalogue and free sample for design and quality check. Tank Accessories Ring Joint Gasket