Description The extensive range of Aluminium rainwater products included in the ACO Building Drainage HP (High Performance) range of outlets provides rainwater drainage solutions for a wide range of applications. For any rainwater drainage system to work effectively and reliably, due account must be taken of the following considerations:       Geographical location     Rainfall intensity     Effective catchments area of roof     Risk category of building     Hydraulic capacity of the drainage system(s) employed Key Features & Benefits:  - Cost effective drainage solution  - high flow rates minimises number of outlets required  - Secure grating to prevent vandalism and theft  - Comprehensive product range for most applications  - Durable, corrosion resistant construction  - Gun-metal optionally available