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Fernco Schedule 40 4 in. Socket X 4 in. D Socket PVC Flexible Coupling

Fernco Schedule 40 4 in. Socket X 4 in. D Socket PVC Flexible Coupling

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Joins two runs of 4-inch Schedule 40 PVC drain pipe with a flexible, socket-to-socket connection that forgives minor misalignment.
Fernco MPN P1059-44 In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $17.99. Our online price is $19.99.
$19.99
Free shipping on orders over $75
Ships within 24 hours · most orders arrive in about 2 business days

About Product Overview

When you're tying into a 4-inch DWV line and the pipe ends don't line up perfectly, this Fernco flex coupling gives you some breathing room. It connects two runs of 4-inch Schedule 40 PVC pipe socket-to-socket, letting you make the joint without cutting new fittings or fighting rigid alignment. Built from lead-free PVC and rated for use in drain, waste, and vent applications, it's a straightforward fix for repairs, remodels, or extending existing runs.

  • Material: PVC, lead-free
  • Schedule 40 rated for DWV use
  • End 1: 4" socket / End 2: 4" socket
  • Maximum pressure: 4.3
  • Made in the USA

The Details Specifications

Brand Fernco
UPC 018578000575
Case Pack Quantity 20 per case
Retail Unit Quantity 1
Dimensions (L × W × H) 4 × 5 × 6
Weight 1 lbs
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
Price check

Go ahead. Check.

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When you're over there, check four things before you click buy.

01

Who's actually selling it

The brand name is on the listing. A different company is in the seller field. Those aren't the same thing, and the second one is who you're buying from.

02

Whether the warranty survives

Most manufacturers only honor a warranty when the unit came through an authorized dealer. We're authorized for Fernco. A third-party marketplace seller usually isn't.

03

Where the box came from

Gray-market stock, returns repackaged as new, and outright fakes move through marketplaces constantly. It all looks identical in the photo. It stops looking identical when it fails.

04

Who you call when it breaks

Ours is a phone number with a person behind it who has held this product. M–F, 6 AM – 5 PM Pacific. (866) 469-8556

We're not always the cheapest.

Sometimes you'll find it for less. Sometimes you'll find it for more. On a lot of brands the number is identical everywhere it's sold legitimately — the manufacturer sets a minimum advertised price and every authorized dealer holds it. When a price sits well under that, it's worth asking why before it's worth celebrating.

How pricing actually works
Authorized dealer · Fernco

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