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O-Rings

House-to-sewer connection

BR-64O-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.

Fernco BR-64 rolling-style rubber O-ring

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.

⤢ Click to enlarge Cutaway: a BR-64 O-ring on a 4 inch house line, inserted into a 6 inch sewer pipe shown cut open BR-64 O-RING4″ HOUSE LINE6″ SEWER PIPE just inside the 6″, sealing on the 4″cast iron or plastic, 4.20–4.60″ O.D.clay, plastic, concrete or D.I.5.75–6.00″ 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 numberBR-64
DescriptionRolling-style rubber O-ring
StandardsMeets ASTM C443 and C425
Typical 4″ pipe in range
4″ Schedule 40 PVC4.50″ O.D.
4″ no-hub cast iron4.38″ O.D.
4″ SDR 35 PVC sewer4.215″ 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.