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Straight malleable iron coupling, 3/4 inch FNPT threads, dark metal finish

Anvil

Anvil 0310538608 3/4" FNPT Malleable Iron Class 300 Trap

SKU CH-74KW-6SEFR MPN 0310538608

Malleable iron Class 300 coupling with 3/4" FNPT threads rated for 2,000 psi at 150°F

  • Product typeDrain Components
  • Main materialHAWA
  • Malleable iron construction delivers Class 300 durability
  • Female NPT threads enable secure Schedule 80 pipe connections
  • Rated 2,000 psi at 150 degrees F for high-pressure service
  • Straight coupling design simplifies in-line drain installations
  • Anvil 0310538608 model ensures consistent factory quality

Product identity

The Anvil 0310538608 is a 3/4" FNPT malleable iron coupling rated Class 300 for Schedule 80 pipe. It provides a straight threaded connection for high-pressure plumbing systems.

Who it suits

Installers needing a 2,000 psi rated joint at 150°F will find this fitting appropriate. Projects requiring welded connections, different thread standards or lower pressure classes should look elsewhere.

Installation notes

Thread the female ends onto matching male pipe threads with suitable sealant for a pressure-tight seal. Misaligned threads or insufficient tightening are the most common causes of leaks during assembly.

How it compares

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

Price $14.99
Cheaper than about 74% of the 4,240 comparable items (median $31.99).

Specifications

Product
Brand nameAnvil
Model name0310538608
Product typeDrain Components
Size & build
Main materialHAWA

Questions about this item

What pipe schedule must my existing piping be for this Class 300 malleable iron coupling to seal correctly?

The coupling is rated for Schedule 80 pipe, so your current piping must match that schedule for proper fit and pressure integrity.

Will the 2,000 psi rating at 150 °F still hold if I thread this coupling into older iron fittings?

The 2,000 psi @ 150 °F maximum operating pressure applies to the coupling itself; the overall joint rating depends on the condition and class of the mating threads.

How can I confirm the coupling is seated correctly after installation?

Pressurize the system up to its design limit and inspect both 3/4" FNPT joints for leaks; a dry joint under test pressure indicates proper seating.

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