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Flexseal Rubber Flexible Drainage Adaptor Coupling

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£7.66 Incl. VAT
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Product Description

Flexseal Adaptor couplings are manufactured to meet and exceed the stringent requirements of the drainage marketplace, and provide a solution to many cases of adaptation.

The adapter couplings have a step moulded elastomeric sleeve that has different diameters at each end. The sleeve is fitted with two stainless steel clamping bands that provide an efficient method of connecting pipes that have varying outside diameters, eradicating possible bush requirements.

Adaptor couplings can also be used to connect all traditional and new pipe systems including structural walled plastic pipes.

Special ranges of adaptor couplings incorporate an extra wide clamping band at one end are also available for ribbed pipe systems. The clamping band secures against two or more external ribs on the plastic ribbed pipe thereby ensuring a high performance seal is obtained irrespective of the coupling position or movement.

  • Provides a quick and efficient method of connecting pipes of differing materials and outside diameters
  • Low cost alternative to using Bushes
  • Provide a connection to pipes of different outside diameters
  • Can be used to join pipelines that are different materials including vitrified clay, cast iron and metal pipes


  • 50 Year Manufacturers Guarantee
  • Durable design ensuring a high performance and reliable seal
  • Stainless steel shear band provides excellent resistance to heavy loads and shear forces
  • Reduces excavation work
  • Complies with WIS 4-41-01 (all public sewers and sewers for adoption)
  • Shear band ensures joint flexibility and pipe alignment
  • High performance sealing properties of the couplings eliminates need for grouting in most applications


When used individually or combined with bushes, the Flexseal Standard couplings have many applications in the construction, repair and maintenance of pipe systems:

  • As a joint for plain ended pipes
  • Repair and maintenance of existing pipelines
  • Connecting short and cut lengths of pipe
  • Making post construction connections to an existing pipeline
  • Reconnection of laterals on renovated sewers
  • Introducing rocker pipe outside manholes or structure

Product Documents

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Material EPDM Pipe Diameter 160mm - 200mm
75mm - 115mm
110mm - 136mm
60mm - 122mm
160mm - 225mm
110mm - 192mm
100mm - 210mm
80mm - 122mm
110mm - 160mm
90mm - 155mm
144mm - 192mm
144mm - 265mm
110mm - 235mm
110mm - 170mm
110mm - 145mm
155mm - 200mm
160mm - 275mm
170mm - 265mm
130mm - 170mm
190mm - 235mm
48mm - 122mm
130mm - 200mm
150mm - 215mm
35mm - 120mm
160mm - 210mm
100mm - 125mm
200mm - 275mm
100mm - 136mm
144mm - 290mm
235mm - 290mm
210mm - 265mm
80mm - 136mm
121mm - 235mm
121mm - 160mm
170mm - 235mm
144mm - 235mm
190mm - 265mm
210mm - 290mm
121mm - 192mm
53mm - 89mm
144mm - 320mm
40mm - 63mm
265mm - 360mm
240mm - 360mm
180mm - 285mm

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Questions & Answers


Are these couplings acceptable to Scottish water for sewer branch connection ?




What is the height of this product?


The product height is 90mm

Product Reviews

5 / 5 5 reviews
Harvey Curtis
Reviewing Flexseal 136mm to 110mm Rubber Flexible Drainage Adaptor Coupling (AC4000)
12th October
Great product, good value
Reviewing Flexseal 160mm to 121mm Rubber Flexible Drainage Adaptor Coupling
9th June
Great robust coupling.
Reviewing Flexseal 210mm to 100mm Rubber Flexible Drainage Adaptor Coupling
18th April
All ok on time
Irene Hills
Reviewing Flexseal 63mm to 40mm Rubber Flexible Drainage Adaptor Coupling
28th June 2020
Good quality product and easy to install.
Timothy Topham
Reviewing Flexseal 136mm to 110mm Rubber Flexible Drainage Adaptor Coupling (AC4000)
4th May 2020
The product is perfect for the required connetion to original 140mm (5 1/2") sewer pipe to new 110mm (4") foul drainage pipe.
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Flexseal Rubber Flexible Drainage Adaptor Coupling

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