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Jones Stephens 4 in. Lead Test Plug
Jones Stephens 4 in. Lead Test Plug

Jones Stephens 4 in. Lead Test Plug

Jones Stephens 4 in. Lead Test Plug is a purpose-built, temporary seal for 4-inch piping used during hydrostatic testing and lead-control procedures. With a low-lead content profil…

Jones Stephens MPN P56400 In Stock & Ready to Ship
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About Product Overview

Jones Stephens 4 in. Lead Test Plug is a purpose-built, temporary seal for 4-inch piping used during hydrostatic testing and lead-control procedures. With a low-lead content profile and a durable gray finish, this plug provides a reliable, easy-to-install solution for field testing in commercial and residential water and plumbing projects.

  • Diameter and connection: 4 in. diameter with End 1 MPT (male pipe thread) to fit standard 4" pipe threads.
  • Low-lead content: designed to meet low-lead requirements for potable water testing and compliance.
  • Color: gray finish helps visibility on busy job sites.
  • Packaging: sold as a single plug per carton.
  • Brand: Jones Stephens, a trusted name for test plugs and fittings.

Ideal uses

  • Temporary isolation of a 4" piping run during leak checks or pressure tests.
  • Lead-testing workflows where a secure, removable seal is required before sampling or treatment steps.
  • Commissioning new installations or retrofits where precise seal integrity is needed before final assembly.

How to use

  1. Inspect the plug and mating threads for damage before installation.
  2. Thread the plug into the 4" pipe end until snug by hand; avoid overtightening to prevent thread damage.
  3. Use only for temporary testing; remove after the test is complete and replace with a permanent fitting.

The Details Specifications

Brand Jones Stephens
SKU 40388
UPC 717510564006
Unit 0
Case Pack Quantity 24 per case
Retail Unit Quantity 1
Unit of Measure 0 0
Dimensions (L × W × H) 4 × 4 × 2
Weight 2 lbs
Cubic Feet 0.01383 ft³
Country of Origin TAIWAN
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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