HydroMax 125mm dia Secondary Overflow Drain

High Performance HydroMax® Siphonic Secondary/Emergency Overflow Roof Drains manufactured in a range of quality materials for compatibility with all roof build up types and gutter materials, our 125mm drains are perfect for high design rainfall rate areas and larger roofs due to the high capacity (up to 100 l/s) with the gutter drain version remaining compact for installation in gutters.
Tested to ANSI/ASME A112.6.9 siphonic roof drain standard; British Standard BS 8490; EN 12056.
Compliance with ANSI/ASPE 45, BS 8490 and International Plumbing Code.