| Model No | Opening Size | |
| W | L | |
| RH 6060 | 600 | 600 |
| RH 7575 | 750 | 750 |
| RH 9090 | 900 | 900 |
| RH 100100 | 1000 | 1000 |
| RH 120120 | 1200 | 1200 |
NOTE : FOR MAKING CUT OUT- SAME AS OPENING SIZES. ABOVE SIZES ARE IN MM CUSTOMISED SIZES ARE AVAILABLE.
Hatches for Roof Access, Metro stations, Lift machine rooms, Water Tanks etc
