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Black malleable iron square head pipe plug, 4 inch nominal size

Anvil

Anvil 0318902723 4" malleable iron square head plug class 150

SKU CH-N7ZV-HV8CT MPN 0318902723

4" malleable iron square head plug rated Class 150 for male NPT connections from -20 to 350 degrees F

  • Product typeDrain Components
  • Main materialHAWA
  • Malleable iron construction resists cracking up to 350 °F
  • Class 150 rating handles standard-pressure plumbing systems
  • Male NPT threads seal directly into 4-inch pipe fittings
  • Square head design allows secure tightening with a standard wrench
  • Black finish identifies the plug quickly in mixed-component bins

4" Malleable Iron Square Head Plug

This Anvil 0318902723 is a Class 150 pipe fitting designed to seal the end of a 4-inch nominal pipe thread. It is made from malleable iron with a black finish for durability in plumbing installations.

For plumbers closing 4-inch NPT lines

Suited for installers needing a solid male NPT plug rated for Class 150 pressure service. Not intended for systems requiring a pre-applied thread sealant or an included gasket seal, or for pipe sizes other than 4-inch nominal.

Male NPT threads with solid construction

The plug features male National Pipe Taper threads and a solid plug construction without a seal or pre-applied sealant. It operates within a temperature range of -20 degrees to 350 degrees Fahrenheit.

How it compares

Measured against everything we stock in Drain Stoppers, Strainers & Traps, at today’s prices. Recalculated every night.

Price $29.99
Typical for this category: the median of 4,240 items is $31.99.

Specifications

Product
Brand nameAnvil
Model name0318902723
Product typeDrain Components
Size & build
Main materialHAWA

Questions about this item

How can I confirm the 4" malleable iron square head plug is sealing correctly after installation?

Pressure-test the line up to the Class 150 rating and inspect the male NPT threads for leaks; the solid plug construction should hold from -20 °F to 350 °F without weeping

What comes with the Anvil 0318902723 plug and what must I supply myself?

The box contains only the black malleable iron plug; you must provide pipe-thread sealant or tape and any matching fittings because no seal or pre-applied compound is included

Which specification tells me this is the right 4" Class 150 plug for my piping system?

Match the nominal pipe size, male NPT threads, malleable iron material and Class 150 pressure class shown in the product details to your system requirements

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