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White PVC FlexStraight trap with two slip-on ends

Fernco Inc.

Fernco Inc. 1059-33 FlexStraight trap PVC 3in Slip-On 3in Slip-On

SKU CH-STB7-GHAC5 MPN 1059-33

Flexible PVC drain coupling with slip-on connections fits 3-inch nominal pipe sizes

  • TypeDrain Components
  • MaterialHAWA
  • Flexible PVC coupling eases installation in tight spaces
  • 3-inch slip-on ends fit standard drain pipes directly
  • Durable HAWA material resists corrosion and chemical wear
  • Reducing design connects 3-inch to 4-inch nominal pipe sizes
  • Fernco brand trusted by plumbing professionals for reliable seals

FlexStraight PVC Drain Coupling

The Fernco 1059-33 is a flexible reducing coupling made from PVC for 3-inch nominal pipe size. It connects a 3-inch slip-on hub to another 3-inch slip-on hub in residential or light commercial drainage systems. Plumbers and maintenance crews use it to join pipes where slight misalignment or vibration occurs.

3-Inch Nominal Capacity With 4-Inch Overall Length

The coupling accommodates 3-inch pipe on both ends with an overall length of 4 inches. It handles typical drain waste and vent flow rates for this diameter. The flexible body absorbs minor ground movement but is not rated for pressure applications or continuous submersion beyond standard gravity drainage.

Slip-On Hubs For Direct Pipe Insertion

Each end features a female slip-on hub that slides over the outside of 3-inch PVC pipe. No threads, clamps or solvent cement are required for the mechanical seal; the elastomeric sleeve compresses against the pipe wall. Installers need only a clean, square-cut pipe end and a standard band clamp to secure the connection.

Highlights

  • Flexible PVC coupling eases installation in tight spaces
  • 3-inch slip-on ends fit standard drain pipes directly
  • Durable HAWA material resists corrosion and chemical wear
  • Reducing design connects 3-inch to 4-inch nominal pipe sizes
  • Fernco brand trusted by plumbing professionals for reliable seals

Specifications

TypeDrain Components
MaterialHAWA
BrandFernco
Model1059-33

Questions about this item

Will the 3-inch slip-on ends connect to existing 3-inch PVC drain pipe without special tools?

The coupling uses a 3-inch slip-on fit on both sides, so it pushes onto standard 3-inch PVC pipe and is secured with the included stainless-steel clamps.

How can I confirm the FlexStraight trap is sealed correctly after installation?

Run water through the line and check the two clamp bands at each 3-inch slip-on joint; no drips mean the elastomeric sleeve has seated properly.

Does the 1059-33 package include the clamps, or must they be purchased separately?

The FlexStraight coupling comes with the two stainless-steel worm-drive clamps already assembled on the PVC sleeve, so no extra parts are needed.

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