Anti Back-Up Roof Outlet

Universal anti-back up drain is one of the best means of connecting roof systems with 68mm rainwater pipes on flat roofs, gutters, domestic & commercial buildings. This has a high resistance to UV light, ozone, movement and cracking.

Technical Characteristics

  • Square, smooth flange 285mm x 285mm for adhering membrane to.
  • 185mm outlet pipe with round flange, which when pushed solidly home into pipe ensure there is no backing up of water under the membrane or joist space.
  • Internal drain Ø55mm.
  • Leaf/gravel guard.