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Sioux Chief 4 in. MPT in. PVC Plug

Sioux Chief 4 in. MPT in. PVC Plug

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

A threaded PVC cap that seals off 4-inch lines fast, no solvent weld needed.
Sioux Chief MPN 878-40PK In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $6.99. Our online price is $7.99.
$7.99
Free shipping on orders over $75
Ships within 24 hours · most orders arrive in about 2 business days

About Product Overview

This 4-inch PVC plug from Sioux Chief caps off male threaded pipe ends in DWV systems, sealing off a line you're not ready to connect or don't need anymore. The MPT end threads in for a direct connection without solvent welding, making it a quick fix for cleanouts, test caps, or capped-off branch lines. Lead-free construction keeps it compliant for potable-adjacent plumbing work, and it's made in the USA.

  • End 1 Diameter: 4 inches
  • End 1 Type: MPT (male pipe thread)
  • Material: PVC, lead-free
  • Application: Direct connect
  • Country of Origin: USA

The Details Specifications

Brand Sioux Chief
UPC 739236307613
Case Pack Quantity 25 per case
Retail Unit Quantity 1
Dimensions (L × W × H) 4 × 4 × 1
Weight 0 lbs
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
Price check

Go ahead. Check.

You're going to open the other tab. Everybody does. We'd rather say so than pretend otherwise — so open it. We'll wait.

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 Sioux Chief. 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 · Sioux Chief

Or skip both tabs and buy it down the street. Find a store near you →

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