Fernco AC633 EPDM Adaptor Coupling 53-63mm to 40-50mm

Working on a small-bore drainage repair or upgrade? The Fernco AC633 EPDM Adaptor Coupling 53-63mm to 40-50mm gives you a secure, watertight join between pipes of different outside diameters. The EPDM rubber sleeve adjusts for minor misalignment and flexes with ground movement. Furthermore, Grade 1 304 stainless steel clamp bands hold firm in buried and exposed conditions. For the full range, see our EPDM Pipe Adaptor Couplings collection.

This coupling suits PVC, clay, and other common drainage pipe materials. Consequently, it works well in domestic repairs, system upgrades, and light commercial drainage work where pipe sizes differ.

Key Features of the Fernco AC633 EPDM Adaptor Coupling

• Body material: EPDM rubber — consequently flexible, durable, and resistant to long-term wear
• Band material: Grade 1 304 stainless steel — also rust-resistant for buried and exposed use
• Size range A: 53mm to 63mm outside diameter
• Size range B: 40mm to 50mm outside diameter
• Pipe types: PVC, clay, and other common drainage materials
• Seal type: Airtight and watertight
• Install: Basic hand tools — no specialist kit needed
• Model code: AC633 | Vendor: Fernco

Applications for the Fernco AC633 EPDM Adaptor Coupling 53-63mm to 40-50mm

This AC633 EPDM adaptor coupling suits small-bore drainage repairs, refurb work, and system upgrades where the two pipes differ in outside diameter. In addition, it works well where a like-for-like pipe swap is not possible. Moreover, the EPDM body absorbs minor ground movement and thermal shift. It therefore keeps the joint intact without putting stress on the pipes either side.

The Fernco AC633 EPDM adaptor coupling also cuts time on site. Consequently, you can complete the joint with basic hand tools and get on with the rest of the job.

Technical Specs

This Fernco AC633 EPDM adaptor coupling uses an EPDM rubber sleeve and Grade 1 304 stainless steel clamp bands. The larger end accepts outside diameters of 53mm to 63mm. However, the smaller end suits outside diameters of 40mm to 50mm. Always measure both pipe outside diameters before ordering to confirm the fit.

Selection Advice

Check both pipe outside diameters before ordering this 53-63mm to 40-50mm 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.