Comparison : Item # 0ST (1-1/2") NP, 1-1/2 Inch (in) Ring Inside Diameter (A) Nickel Plated Finish Welded O-Ring
Item # 0ST (2") NP, 2 Inch (in) Ring Inside Diameter (A) Nickel Plated Finish Welded O-Ring
Item # 0ST (2-1/2") NP, 2-1/2 Inch (in) Ring Inside Diameter (A) Nickel Plated Finish Welded O-Ring
Item # 0ST (2-1/2 x 1/2") ZP, 2-1/2 Inch (in) Ring Inside Diameter (A) Zinc Plated Finish Welded O-Ring
Item # 0ST (3") 7.8mm BP, 3 Inch (in) Ring Inside Diameter (A) Brass Polished Finish Welded O-Ring