Fernco AC4000 EPDM Adaptor Coupling 121-137mm to 110-122mm

The Fernco AC4000 EPDM Adaptor Coupling 121-137mm to 110-122mm gives you a secure, flexible join between drainage pipes of different outside diameters. The EPDM rubber body creates an airtight and watertight seal. Furthermore, it adjusts for minor pipe misalignment and movement without extra fittings. Grade 1 304 stainless steel bands also give a strong, rust-resistant clamp on both ends. For the full range, see our EPDM Pipe Adaptor Couplings collection.

This coupling suits mixed pipe materials including PVC, clay, concrete, and cast iron. Consequently, it works well in repair, swap-out, and new drainage installs where pipe materials differ.

Key Features of the Fernco AC4000 EPDM Adaptor Coupling

• Body material: EPDM rubber — consequently giving flexibility, durability, and long-term resistance
• Band material: Grade 1 304 stainless steel — also rust-resistant for below-ground and exposed use
• Size range A: 121mm to 137mm outside diameter
• Size range B: 110mm to 122mm outside diameter
• Pipe types: PVC, clay, concrete, and cast iron
• Seal type: Airtight and watertight
• Model code: AC4000 | Vendor: Fernco

Applications for the Fernco AC4000 EPDM Adaptor Coupling 121-137mm to 110-122mm

This AC4000 EPDM adaptor coupling suits industrial drainage systems, infrastructure pipework, and large-scale drainage joins. In addition, it works well in repairs where a like-for-like pipe swap is not possible. Moreover, the flexible EPDM body absorbs minor pipe movement. It therefore takes stress off the surrounding pipework during ground shifting or thermal expansion.

The Fernco EPDM adaptor coupling also reduces the need for specialist tools on site. Consequently, it speeds up installation in both planned maintenance and emergency repair work.

Technical Specs

This Fernco AC4000 EPDM adaptor coupling uses EPDM rubber for the body and Grade 1 304 stainless steel for the clamp bands. The larger end accepts outside diameters of 121mm to 137mm. However, the smaller end suits outside diameters of 110mm to 122mm. Always measure both pipe outside diameters before ordering.

Selection Advice

Check both pipe outside diameters before ordering this 121-137mm to 110-122mm Fernco EPDM adaptor coupling. As a result, you get a 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.