The Fernco AC1201 EPDM Adaptor Coupling 105-120mm to 35-45mm handles one of the most extreme pipe size steps in the Fernco AC range. It gives you a firm, airtight, and watertight joint between a large-bore pipe and a much smaller one.

The extended EPDM rubber sleeve bridges the gap and adjusts for minor pipe offset. Furthermore, stainless steel bands give a strong, rust-proof grip at both ends. For the full range, see our EPDM Pipe Adaptor Couplings collection.

This coupling suits PVC, clay, concrete, and cast iron drainage pipes. Consequently, it works well in repairs and new installs where there is a very large drop in pipe outside diameter.

Key Features of the Fernco AC1201 EPDM Adaptor Coupling

  • Body material: Extended EPDM rubber sleeve — consequently flexible, durable, and built for long-term use
  • Band material: Stainless steel — also rust-proof for buried and exposed use
  • Size range A: 105mm to 120mm outside diameter
  • Size range B: 35mm to 45mm outside diameter
  • Pipe types: PVC, clay, concrete, and cast iron
  • Seal type: Airtight and watertight
  • Offset: Extended sleeve also helps where pipes are offset or out of true
  • Install: Standard hand tools — no specialist kit needed
  • Model code: AC1201 | Vendor: Fernco

Applications for the Fernco AC1201 EPDM Adaptor Coupling 105-120mm to 35-45mm

This AC1201 EPDM adaptor coupling suits drainage repairs and new installs where there is a very large step-down between pipe outside diameters. In addition, it works well where a like-for-like pipe swap is not an option. Moreover, the extended EPDM sleeve absorbs ground movement and thermal shift without breaking the seal. It therefore takes stress off the nearby pipework on both sides of the joint.

The Fernco AC1201 EPDM adaptor coupling also cuts time on site. Consequently, you can make a secure, leak-free joint with standard hand tools and no need to cut in new pipe runs.

Technical Specs

This Fernco AC1201 EPDM adaptor coupling features an extended EPDM rubber sleeve with stainless steel bands. The larger end accepts outside diameters of 105mm to 120mm. However, the smaller end suits outside diameters of 35mm to 45mm. Always measure both pipe outside diameters before ordering to confirm the fit.

Selection Advice

Check both pipe outside diameters before ordering this 105-120mm to 35-45mm Fernco EPDM adaptor coupling. As a result, you get a tight, leak-free fit without reducers or extra parts. If your pipe sizes fall outside this range, see the full EPDM Pipe Adaptor Couplings range for other size options.

Frequently Bought Together

Total price£45.85

Customers also bought