| Caption | Waterson 3 in 1 Closer Hinges serve three functions: 1) heavy-duty hinges, 2) door closer, and 3) optional door hold-open. By eliminating the need for an overhead closer, Waterson Hinges improve the appearance of a door and reduce installation and life-cycle costs. |
| Source | Waterson |
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Affordable Self-closing Door Hinges Add Up to Savings. 外掛門弓器與隱藏式門弓器的拉桿一起消失了! |