ES - 1PS
Các khóa phần tư - biến van bi vị trí OFF.
| MODEL | PRODUCT DESCRIPTION |
| ES - 2PP - SBVL | Two Piece PVC - Small Ball Valve Lockout |
| ES - 1PS - S BVL | One Piece Steel - Small Ball Valve Lockout |
| ES - 1PS - L BVL | One Piece Steel - Large Ball Valve Lockout |
