The SMS series offer deflective shutter type help control back-draft and resist water from entering stove pipe.
Material: Stainless steel 304/2B
| Model | Product size | |||
| D(mm) | AXA (mm) | L(mm) | Air Flow(c㎡) | |
| SMS-100 | 97 | 137 × 137 | 52 | 70 |
| SMS-125 | 120 | 167 × 167 | 52 | 112 |
| SMS-150 | 145 | 167 × 167 | 62 | 164 |
Drawing：
