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Black flexible rubber coupling with stainless steel bands for 12 inch pipes

Fernco Inc.

Fernco Inc. 1056-1212 Flexible Coupling Trap 12 in x 12 in

SKU CH-NPGW-CTR25 MPN 1056-1212

Flexible elastomeric PVC coupling joins 12 in pipes, rated to 4.3 psi and 140 °F with 300 stainless steel bands, meeting ASTM C1173

  • TypeDrain Components
  • MaterialElastomeric Polyvinyl Chloride
  • Elastomeric PVC resists chemicals and fungus growth
  • 300 stainless steel bands maintain seal integrity
  • Connects 12 in pipes with secure fit
  • Meets ASTM C1173 standard for reliability
  • Withstands 140°F and 4.3 psi max pressure

Flexible Coupling for 12 in Pipe

The Fernco 1056-1212 is a flexible coupling designed to join two 12-inch pipes in drainage and sewer systems. It is intended for plumbers and contractors who need a watertight, chemical-resistant connection without rigid alignment. The elastomeric PVC body accommodates slight pipe misalignment and ground movement.

Handles 4.3 psi and 140 Degrees F

The coupling withstands internal pressures up to 4.3 psi and continuous temperatures up to 140 degrees F, making it suitable for standard gravity-flow sewer and drain lines. It resists chemicals, fungus growth, normal sewer gases and ultraviolet rays. The 300 stainless steel bands provide corrosion-resistant clamping force. It is not rated for high-pressure water supply or temperatures beyond the stated maximum.

Meets ASTM C1173 Standard

This coupling conforms to ASTM C1173, the standard specification for flexible transition couplings. The 6 3/8-inch fitting length and 12-33/64-inch inside diameter define the installed envelope. Buyers must verify that their pipe outside diameters fall within the coupling's sealing range and that local codes accept this standard for the intended application.

Highlights

  • Elastomeric PVC resists chemicals and fungus growth
  • 300 stainless steel bands maintain seal integrity
  • Connects 12 in pipes with secure fit
  • Meets ASTM C1173 standard for reliability
  • Withstands 140°F and 4.3 psi max pressure

Specifications

TypeDrain Components
MaterialElastomeric Polyvinyl Chloride
BrandFernco
Model1056-1212

Questions about this item

Will the 1056-1212 coupling fit my existing 12-inch cast iron and PVC pipes?

Yes, the coupling is designed for a 12 in x 12 in pipe size with an inside diameter of 12-33/64 in, accommodating standard 12-inch pipe materials.

How can I verify the 1056-1212 is sealed correctly after installation?

Tighten the 300 stainless steel bands securely; the elastomeric PVC body resists chemicals, fungus, sewer gases, and UV rays, and handles up to 4.3 psi pressure at 140°F.

Does the 1056-1212 package include the stainless steel bands or must I buy them separately?

The coupling comes complete with 300 stainless steel bands already attached; no separate purchase is needed for standard installation.

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