Fernco 1055 Coupling – Asbestos-Cement & Ductile Iron to AC/Ductile Iron
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✓ Joins asbestos-cement (AC) or ductile iron to AC or ductile iron
✓ Positive seal against infiltration and exfiltration on sewer & drain lines
✓ 300-series stainless steel clamps — corrosion resistant, install with a nut driver
✓ Conforms to ASTM C1173, ASTM D5926 & CSA B602 — passes inspection
High Demand Item – Frequently Reordered by Contractors
The Fernco 1055 joins asbestos-cement (AC) fibre or ductile iron pipe to AC or ductile iron of the same size — a watertight, no-hub connection for AC and ductile sewer systems.
The elastomeric PVC sleeve resists chemicals, UV, and normal sewer gases, with 300-series stainless steel clamps. Stocked 6″ and 8″.
Applications
- Joining two sections of asbestos-cement (AC) sewer pipe
- Ductile iron to ductile iron connections
- AC and ductile sewer main repairs
- Sewer and drain tie-ins above or below ground
Key Features
- Elastomeric PVC sleeve — leak-proof, root-proof, resistant to chemicals, UV and sewer gases
- Two 300-series stainless steel clamps, corrosion resistant and rustproof
- Connects same or different pipe sizes and materials
- Each coupling marked with part number, size, and compatible pipe materials
- Made in the USA — sizes 15″ and below are AIS and BABA compliant
Specifications
| Sleeve Material | Elastomeric PVC |
| Clamps | 300-series stainless steel |
| Standards | ASTM C1173, ASTM D5926, CSA B602, UPC |
| Installation Torque | 60 in-lbs |
| Max Test Pressure | 4.3 PSI (29.6 kPa) |
| Operating Temperature | -30°F to 140°F (non-consistent) |
| Origin | Made in USA (15″ and below AIS/BABA compliant) |
Sizes & Connections (AC/Ductile × AC/Ductile)
| Part No. | Connects | Price |
|---|---|---|
| 1055-66 | 6" AC/Ductile × 6" AC/Ductile | $21.94 |
| 1055-88 | 8" AC/Ductile × 8" AC/Ductile | $33.76 |
For exact outside-diameter ranges by size, see the Fernco dimensional drawings linked below.
Best Used For
- AC-to-AC sewer repairs
- Ductile iron to ductile iron joints
- Below-ground AC and ductile connections needing a code-compliant seal
FAQ
What does it connect?
Asbestos-cement (AC) or ductile iron to AC or ductile iron of the same size. To transition AC/ductile to cast iron or plastic, use the Fernco 1051.
Working with asbestos cement?
Follow all applicable handling regulations when cutting or disturbing AC pipe.
Why Contractors Choose This
- The Fernco everyone knows — spec it once, install it anywhere
- One fitting joins the materials in this series, same or different sizes
- No primers, glue or cure time — clamp it and move on
- Code-compliant: ASTM C1173, ASTM D5926, CSA B602
- Made in the USA
✓ Conforms to ASTM C1173, ASTM D5926 & CSA B602
✓ 300-series stainless steel clamps
✓ UPC listed
✓ Made in the USA (15″ and below AIS/BABA compliant)
Documents
Fernco Coupling Specs & Dimensional Drawings
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