‧ The specially designed enabled cup to install O-ring smoothly and easily, elminating damage to the O-ring cylingders.

‧ Applicable: Φ9/16"(14.4mm~16.0mm); Φ5/8"(15.9mm~17.5mm); Φ11/16"(17.5mm~19.1mm); Φ13/16"(20.7mm~22.4mm); 

         Φ7/8"(22.4mm~24mm); Φ15/16"(24.0mm~26.0mm); Φ1.0"(25.5mm~27.5mm); Φ1-3/16"(30.3mm~32.3mm);