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Harmer SML Cast Iron Underground Drain Pipe Blank End

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Harmer SML is a lightweight, dry jointed pipework system at the leading edge of cast iron technology. BBA Agrément Certified and fully compliant with BS EN 877, Kitemark certification and with CE Mark conformity, this proven system has more than 30 years' use throughout Europe.


  • A complete soil and waste pipework system
  • Covers installation from pipework connection to stack to underground sewer connection
  • Also suited to rainwater installations in conjunction with Harmer Roof Outlets
  • Pipes available in standard 3m lengths, in diameters of 50mm to 400mm
  • Choice of ductile or stainless steel couplings

Installation & Fixing

  • Assembled by means of twin screw couplings
  • Secure socketless fixing between pipe and fitting
  • No special installation equipment required
  • Epoxy coatings ensure pipes and fittings need minimal maintenance over lifetime of installation


  • Agrément certified and meets European Standard BS EN 877
  • CE Mark: European product conformity to harmonised standard BS EN 877 in accordance with Construction Products Regulation 2013
  • Kitemark Certification in accordance with BS EN877
  • Lightweight, strong and durable
  • Excellent noise attenuation, tested to BS EN 14366: 2004
  • Non-combustible - fire protection collars not necessary
  • High tensile strength
  • Inherent resistance to external accidental damage and vandalism
  • Quick to assemble
  • 100% recyclable

Materials & Finishes

  • Pipes and fittings manufactured in grey iron to DIN 1691  (exceeds BS 1452 Grade 150 ISO 185 Grade 15)
  • Couplings are manufactured in stainless steel and ductile cast iron
  • Pipes exterior have a primer coat, minimum thickness 40 µm
  • Pipes interior have an epoxy coating with a minimum thickness of 120 µm
  • Fittings are coated externally and internally with an epoxy coating, minimum thickness 60 µm


Material Cast Iron Pipe Diameter 100mm


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Harmer SML Cast Iron Underground Drain Pipe Blank End

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