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Flexible corrugated PVC coupling 3x3 inch with stainless steel bands

Fernco Inc.

Fernco Inc. P1070-33 Flex Corrugated Coupling Trap 3x3 in

SKU CH-X8J7-1KH82 MPN P1070-33

Flexible corrugated coupling joins 3-inch pipes with stainless-steel bands, rated to 4.3 psi and 140 °F

  • TypeDrain Components
  • Flexible corrugated design eases installation on 3 in pipes
  • Meets ASTM D5926 standard for reliable drain connections
  • 300 stainless steel bands resist corrosion and seal tightly
  • Withstands temperatures up to 140 degrees F for hot water lines
  • Resists chemicals, fungus and UV for long service life

Purpose and fit

The Fernco P1070-33 is a flexible corrugated coupling designed to join two 3-inch pipes in drainage systems. It serves plumbers and maintenance crews who need a watertight seal without rigid alignment.

Critical specification

The coupling accepts a 3-inch by 3-inch pipe size with an inside diameter of 3-1/2 inches on each end and conforms to ASTM D5926. If the pipe dimensions or the required standard differ, this fitting will not create a compliant joint.

Sustained-load behaviour

The PVC body with 300 stainless steel bands resists chemicals, fungus growth, normal sewer gases and ultraviolet rays up to a maximum temperature of 140 degrees Fahrenheit and a pressure rating of 4.3 psi. Under continuous exposure within these limits the coupling maintains its seal without degradation.

Highlights

  • Flexible corrugated design eases installation on 3 in pipes
  • Meets ASTM D5926 standard for reliable drain connections
  • 300 stainless steel bands resist corrosion and seal tightly
  • Withstands temperatures up to 140 degrees F for hot water lines
  • Resists chemicals, fungus and UV for long service life

Specifications

TypeDrain Components
BrandFernco
ModelP1070-33

Questions about this item

What does the 4.3 psi pressure rating mean for everyday drainage?

The 4.3 psi maximum pressure rating covers typical residential gravity-flow drainage and low-head applications, so the coupling handles normal sewer and waste lines without leaking.

How does the ASTM D5926 standard affect what pipe I can connect?

ASTM D5926 certifies the flexible PVC corrugated coupling for 3-inch schedule 40 DWV pipe, ensuring a code-compliant seal on standard plastic drain, waste and vent piping.

What clearance do I need to slide the 4-inch fitting onto 3-inch pipe?

The coupling is 4 inches long with a 3-1/2 inch inside diameter, so you need at least 4 inches of straight pipe exposed on each side to push the corrugated ends fully over the 3-inch pipe.

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