Fernco AC1923 EPDM Adaptor Coupling 170-192mm to 121-136mm

The Fernco AC1923 EPDM Adaptor Coupling 170-192mm to 121-136mm is an extended adaptor coupling that handles a large step-down between pipe outside diameters with a firm, airtight, and watertight seal. The EPDM rubber sleeve adjusts for minor pipe offset and ground movement. Furthermore, Grade 1 304 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 large-bore drainage repairs, refurb projects, and new installs where pipe outside diameters differ significantly.

Key Features of the Fernco AC1923 EPDM Adaptor Coupling

• Body material: EPDM rubber — consequently flexible, durable, and built for long-term use
• Band material: Grade 1 304 stainless steel — also rust-proof for buried and exposed use
• Size range A: 170mm to 192mm outside diameter
• Size range B: 121mm to 136mm outside diameter
• Pipe types: PVC, clay, concrete, and cast iron
• Seal type: Airtight and watertight
• Extended sleeve: also helps where pipes are offset or slightly out of true
• Install: Standard hand tools — no specialist kit needed
• Model code: AC1923 | Vendor: Fernco

Applications for the Fernco AC1923 EPDM Adaptor Coupling 170-192mm to 121-136mm

This AC1923 EPDM adaptor coupling suits large-bore drainage repairs and new installs where a 170-192mm pipe needs to connect to a 121-136mm pipe. In addition, the extended EPDM sleeve gives more sealing cover in tricky or offset conditions. Moreover, the EPDM body absorbs ground movement and thermal shift without breaking the joint. It therefore takes stress off the nearby pipework on both sides.

The Fernco AC1923 EPDM adaptor coupling also keeps on-site work moving. 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 AC1923 EPDM adaptor coupling uses an extended EPDM rubber sleeve and Grade 1 304 stainless steel bands. The larger end accepts outside diameters of 170mm to 192mm. However, the smaller end suits outside diameters of 121mm to 136mm. Always measure both pipe outside diameters before ordering to confirm the fit.

Selection Advice

Check both pipe outside diameters before ordering this 170-192mm to 121-136mm 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.