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The noise from banging pipes is caused by shocks of high speed water flowing in the pipe when a fixture is suddenly closed. Sudden stoppage causes a 'bounceback' of the water and is called water hammer. It might be compared to driving your car at slow speed into a wall where the effect is negligible. However, if you drove the car at a much higher speed, the impact would be greater, and consequently, so would the bounceback or shock. Dishwashers, clothes washers, quick-closing faucets all contribute to creating water hammer which is not only annoying but damaging to pipes and appliances. The simple, economical solution is Watts Series LF150A designed with a pre-charged air chamber and a rugged sealed-in diaphragm which flexes to absorb the shock. It can be installed vertically, horizontally or at any angle.

  • Can be installed in new or existing plumbing systems in any angle
  • Consists of a pre-charged air chamber that is rechargeable, an air-tight sealing cap, standard tire valve connection for easy charging, stainless steel top, sealed-in diaphragm, lower stainless steel chamber, and brass hex ad
  • Technical Specs

    SKU: 59229
    Model: 0121227
    pressure rating: 150 psi Maximum Working, 200 psi Shock connection size: 1/2 Inch
    length: 4-5/16 Inch temperature rating: 180 deg F Maximum
    product type: Water Hammer Arresters type: Lead-Free
    product upc code: 098268580266 diameter: 4-13/32 Inch
    material: Stainless Steel prop65 warning: California Proposition 65 Warning, This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to
    series: LF150A Series reference number: 1/2 LF150A
    country of origin: US connection type: MNPT

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