Menu
House-to-sewer connection
BR-64 O-Ring
Tie a 4″ house line into a 6″ sewer pipe. The BR-64 rolling-style rubber O-ring goes on 4″ cast iron or plastic pipe and seals it inside 6″ clay, plastic, concrete or ductile iron pipe.
4″ house line into 6″ sewer
Meets ASTM C443 and C425
The job
A 4″ house line into a 6″ sewer
Where a 4″ building sewer, the house line, ties into a 6″ sewer lateral or stub, the smaller pipe leaves a gap inside the larger one. The BR-64 O-ring fills it: a rolling-style rubber ring on the 4″ pipe that seals against the inside of the 6″ pipe.
Quick and simple
A secure connection between most 4″ house lines and 6″ sewer pipe.
Cast iron or plastic
Fits 4″ cast iron or plastic pipe from 4.20″ to 4.60″ O.D.
Most 6″ sewer pipe
Seals in 6″ clay, plastic, concrete or ductile iron pipe from 5.75″ to 6.00″ I.D.
Cutaway of a 4″ house line sealed inside a 6″ sewer pipe. Not to scale.
How it fits
On the 4″. Inside the 6″.
The O-ring goes on the outside of the 4″ house line, which then goes into the 6″ sewer pipe. The ring fills the space between the two.
- 4″ house line: cast iron or plastic, 4.20″ to 4.60″ O.D.
- 6″ sewer pipe: clay, plastic, concrete or ductile iron, 5.75″ to 6.00″ I.D.
Specifications
Fit
| House line (4″) | Cast iron or plastic, 4.20″ to 4.60″ O.D. |
| Sewer pipe (6″) | Clay (VCP), plastic, concrete or ductile iron, 5.75″ to 6.00″ I.D. |
Product
| Part number | BR-64 |
| Description | Rolling-style rubber O-ring |
| Standards | Meets ASTM C443 and C425 |
Typical 4″ pipe in range
| 4″ Schedule 40 PVC | 4.50″ O.D. |
| 4″ no-hub cast iron | 4.38″ O.D. |
| 4″ SDR 35 PVC sewer | 4.215″ O.D. (near the minimum) |
Standard published ODs. Always measure the actual pipe.
Frequently asked questions
What does the BR-64 connect?
A 4″ house line (building sewer) to a 6″ sewer pipe. It fits 4″ cast iron or plastic pipe from 4.20″ to 4.60″ O.D. and seals inside 6″ clay, plastic, concrete or ductile iron pipe from 5.75″ to 6.00″ I.D.
What standards does it meet?
ASTM C443 and ASTM C425.
What if my pipe is outside those ranges?
Contact Fernco for help finding the right seal. For hub, bell and socket connections, Fernco Donuts come in hundreds of sizes and configurations.
Got questions?
Not sure the BR-64 fits your pipe? Our team can help you find the right seal. Reach out, or find your Fernco rep.