A Grade Fire Rated 200 Degree Door Viewer C/W Shutter

A Grade Fire Rated 200 Degree Door Viewer C/W Shutter
Product Information

• All models with highly polished optical glass lenses
• By extending male screw, female screw, or both (or by shortening), the door viewer can easily be adjusted for any door thickness
• Material: Brass
• Door thickness: 35/60mm
• Frire Rated 30 minutes - no intumescent
• Fire Rated 60 minutes - intumescent required 1mm