We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
White PVC cleanout plug with square drive head

Mueller Industries, Inc.

Mueller Industries, Inc. 1WKH8 PVC Cleanout Trap

SKU CH-8FTG-FHC3C MPN 1WKH8

A PVC cleanout plug with 3/4 inch square drive for Schedule 40 drainage systems rated to 140 degrees F

  • TypeDrain Components
  • ColorWhite
  • Schedule 40 PVC resists corrosion up to 140 °F
  • 3-inch male NPT threads fit standard drainage fittings
  • 3/4-inch square drive allows easy install with common tools
  • White finish identifies PVC in mixed-material systems
  • Pre-applied sealant not included — apply your preferred compound

PVC Cleanout Plug, 3 in Nominal Pipe Size

This white PVC cleanout plug fits 3-inch nominal Schedule 40 pipe and connects via male NPT threads. It is built for drainage systems operating between 0 and 140 degrees Fahrenheit. The plug suits residential and light commercial plumbing installations.

Verify pipe schedule and thread type before ordering

Confirm the existing line is Schedule 40 PVC and that the female fitting accepts male NPT threads. The plug has a 3-1/2 inch outside diameter and a 1-3/4 inch overall length. No sealant is pre-applied and no gasket is included, so thread sealant must be supplied separately.

Square drive eases installation and removal

A 3/4 inch square drive lets you tighten or loosen the cored plug with a standard ratchet or wrench. The Schedule 40 rating matches the pipe class for consistent pressure handling. No additional accessories or software are bundled with this fitting.

Highlights

  • Schedule 40 PVC resists corrosion up to 140 °F
  • 3-inch male NPT threads fit standard drainage fittings
  • 3/4-inch square drive allows easy install with common tools
  • White finish identifies PVC in mixed-material systems
  • Pre-applied sealant not included — apply your preferred compound

Specifications

TypeDrain Components
ColorWhite
BrandMueller Industries
Model1WKH8

Questions about this item

What comes with the 1WKH8 PVC cleanout plug and what must be purchased separately?

The plug is supplied as a single white PVC component with a 3/4 in. square drive; no thread sealant or gasket is included, so PTFE tape or pipe dope and a compatible wrench are needed for installation.

Which specification of the 1WKH8 should be selected for a 3 in. Schedule 40 PVC drain line?

The fitting is manufactured for 3 in. nominal Schedule 40 pipe with a 3-1/2 in. outside diameter and male NPT threads, matching that exact drain size.

What does the 140 °F temperature rating mean when the plug is installed in a hot-water drain?

The PVC body is rated for continuous service up to 140 °F, so it will maintain seal integrity on typical residential hot-water waste lines without softening or deforming.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.