Top Gasket Set - 1 Cyl.S.71288https://22df4504011deb964a17-39bee0485bf754a0e77a8d4deb668d89.ssl.cf4.rackcdn.com/imagelibrary_sml/71288_pic1.jpgSparexS.71288
Ring Type
Top Ring: CP1 - Chrome Plated Parallel Faced (2.97mm)
2nd Ring: P1 - Parallel Faced Plain (2.97mm)
3rd Ring: N1 - Napier, Externally Stepped Bottom With Single Hook (2.96mm)
4th Ring: SS - Standard Slotted (4.96mm)