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STZ Industries 3 in. MIP each Galvanized Malleable Iron Plug
STZ Industries 3 in. MIP each Galvanized Malleable Iron Plug
STZ Industries 3 in. MIP each Galvanized Malleable Iron Plug

STZ Industries 3 in. MIP each Galvanized Malleable Iron Plug

STZ Industries 3 in. MIP Galvanized Malleable Iron Plug is a rugged, lead-free piping solution engineered to seal 3-inch male iron pipe openings with confidence. Built from durable…

Stz Industries MPN 351P-3
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This product isn’t sold on our website — see your local hardware store.

Typical Store Price i
Typical store price: low $14.99, average $17.99
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About Product Overview

STZ Industries 3 in. MIP Galvanized Malleable Iron Plug is a rugged, lead-free piping solution engineered to seal 3-inch male iron pipe openings with confidence. Built from durable malleable iron and finished in galvanized coating, this plug combines strength, corrosion resistance, and dependable performance for a wide range of plumbing and piping projects.

  • End 1 Diameter: 3" MIP (Male Iron Pipe)
  • Material: Malleable Iron
  • Finish: Galvanized for enhanced corrosion resistance
  • Maximum Pressure: 300
  • Maximum Temperature: 150
  • Packaging Type: Bagged
  • Product Type: Plug
  • Lead Content: Lead-Free
  • Brand: STZ Industries

Who this is for: homeowners tackling DIY plumbing projects, professional plumbers, and maintenance teams who need a dependable, ready-to-use plug for 3-inch pipe work. If you’re sealing off a dormant line, performing a temporary shutdown for maintenance, or completing a new install that requires a robust cap, this plug is built to perform when it matters most.

Why it matters: the combination of malleable iron’s load-bearing strength with a galvanized finish delivers a plug that resists corrosion, stands up to daily use, and provides a secure seal in a variety of piping environments. The lead-free construction adds peace of mind for potable water applications and long-term reliability.

Practical use cases and tips:

  • Seal unused 3" MIP openings in residential, commercial, or light industrial piping during renovations or maintenance.
  • Use in temporary shutdowns of water lines or test setups where a reliable, reusable plug is needed.
  • Ideal for projects where a strong, durable plug is required to withstand system pressure and periodic adjustments.
  • Store bagged plugs in a dry place to maintain the galvanized finish and ease of reuse on future jobs.

With its lead-free composition, galvanized malleable iron body, and precise 3" MIP threading, the STZ Industries 3 in. MIP Galvanized Malleable Iron Plug offers a straightforward, long-lasting solution for sealing 3-inch pipe ends—combining safety, durability, and practical value in one dependable component.

The Details Specifications

Brand Stz Industries
SKU 4289955
UPC 019442150471
Unit 0
Case Pack Quantity 9 per case
Retail Unit Quantity 1
Unit of Measure 0 0
Dimensions (L × W × H) 4 × 4 × 2
Weight 2 lbs
Cubic Feet 0.00926 ft³
Country of Origin VIETNAM
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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