...toroidal elastic gasket used to seal connections in the fluid transferring system. They are usually designed to fit a specific niche in a joint construction. Elastic materials allow the typical-sized gaskets to fit and hermetically seal atypical niches and spaces, providing leak and contamination protection. Due to this attribute, these devices are often used as sealing gears in pumps, valves, hydraulic mechanism and similar appliances. O-rings are cheap and reliable, however it is recommended to replace them once the joint or a mechanism has been disassembled for maintenance or repair. You can find a great variety of O-rings and supplementary parts like springs, cords, etc. Lowest prices for the best products - only on MegaDepot.