With one-piece aluminium construction, the Cristal portlight is especially required for in-hull installation. Engineered in casting, it is sturdy and extremely durable. The 40° angled outside frame is designed to allow water draining when opening the portlight.
The Cristal range includes two versions of portlights: the oblong-shaped models and the rectangular-shaped models referred to as "R".
| 
 Model  | 
 Weight (Kg)  | 
 Cut-out dimensions (mm)  | 
 Overall dimensions (mm)  | 
 Cut-out radius (mm)  | 
 Acrylic thickness (mm)  | 
| 
 23.10R  | 
 1.8  | 
 281 x 151  | 
 303 x 173  | 
 62  | 
 8  | 
| 
 33.13  | 
 2.4  | 
 380 x 180  | 
 402 x 202  | 
 90  | 
 8  | 
| 
 33.13R  | 
 2.5  | 
 380 x 180  | 
 402 x 202  | 
 62  | 
 8  | 
| 
 43.18  | 
 3.0  | 
 480 x 230  | 
 502 x 252  | 
 115  | 
 8  | 
| 
 43.18R  | 
 3.5  | 
 480 x 230  | 
 502 x 252  | 
 62  | 
 8  | 
Closing system
 
The quarter-turn handles are fitted by pressure in a ramp fixed on the frame. The adjustable friction device allows the lid to hold in all positions.
- Supplied as standard with a grey acrylic glass
 - Mounting on a flat surface with a ± 0.5 mm tolerance
 - Approved in CE areas I, IIb, III and IV for 23.10R, 33.13 and 33.13R models and in areas IIb, III and IV for 43.18 and 43.18R models