Water Retention Box WRB 85

Water Retention Box made of recycled PP material. With high temporary and possibly permanent retention volume in combination with a Flow Control System for specific regulation of water discharge and/or water storage.


Material  Recycled PP
Compressive strength
(DIN ISO 25619-2)
approx. 800 kN/m² with
10 % compression
Water discharge capacity
(DIN EN ISO 12958) 
Roof pitch 2% = 8.63 l/s*m
Nominal thickness approx. 85 mm
Grammage approx. 5.7 kg/m²