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Washing Machine Hammer Arrestor

Used to protect the plumbing system against water hammer from a washing machine.

Available In
  • WHAWM34Z 3/4 in. Female Swivel HT x MHT Washing Machine Hammer Arrestor
  • no-tools

    No Tools

    No special tools, crimping, glue or soldering required.
  • behind-the-wall


    Approved to be used underground and behind walls without access panels.
  • durable

    High Quality Brass

    Lead free brass ball for full flow and corrosion resistance.

Provides maintenance-free, continuous protection against water hammer. Can be positioned vertically or horizontally and doesn't require cutting into the plumbing system for installation like traditional options.

  • Can be installed in wet lines.
  • Approved for behind-the-wall applications with no access panels.
  • Rated for 250 psi and 220°F (104°C).
  • Swiveled thread for easy install.
  • cUPC
  • ASSE 1010
  • NSF/ANSI 372

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