Skip Content


Anti-Siphon Backflow Preventer, Bronze, Watts 800 Series, NPT Connection

  • Item # 1RCZ8
  • My Part #
  • Mfr. Model # 800M4QT-1"
  • Catalog Page # 2906
  • UNSPSC # 40141609
Anti-Siphon Backflow Preventer,Watts 800 close

Using 360° Viewing:

  1. Rotate: Use top-to-bottom, side-to-side by use of mouse arrow.
  2. Zoom In: Double click on image.
  3. Zoom Out/Reset: Put photo at full zoom & then double click.

CAD Downloads

Web Price $164.00 / each
Activate Now

to save with

Select AdvantageSM

Please sign in or register to access lists

Please sign in or register to access Quote

Want to Get Free Shipping?

Jump to:
  • Shipping Weight 5.45 lbs.
Country of Origin USA Country of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More

Product Details

800 Series
Use for health hazard continuous-pressure applications where the water enters equipment at or below its flood rim.
Bronze Antisiphon Vacuum Breakers
Protect the potable water supply against backsiphonage of contaminated water in indoor point-of-use applications. NPT connection.
Meet USC standards.

View More

Technical Specs

  • Item Anti-Siphon Backflow Preventer
  • Series Watts 800
  • Size 1"
  • Connection NPT
  • Body Material Bronze
  • Temp. Range 33 Degrees to 180 Degrees F
  • Max. Temp. 140 Degrees F
  • Max. Pressure 180 psi
  • Width 6-1/2"
  • Length 5-3/8"
  • Height 5-3/8"
  • Features Quarter Turn
  • Standards USC
How can we improve our Technical Specifications?

Compliance and Restrictions

  • This product is not intended for potable water applications (human consumption – drinking and cooking) and has not been designed to be compliant with the “Safe Drinking Water Act” requirements for low lead in potable water applications. This item is for use only in non-potable (non-human consumption) water applications.

  • This item is restricted for conveying or dispensing water for potable use (human consumption).

Replacement Parts

Alternate Products

Alternate Products may not be identical in style or function to original selection. Please compare below for more information.

Alternate Search Terms

Customer Reviews

Product Reviews Disclaimer:
Grainger is neither responsible for, nor does it endorse, the content of any product review or statement posted. Any statements posted constitute the statements of the poster and are not the statements of Grainger. The statements posted by Grainger employees with the Grainger employee badge represent the views of such employees and are not the statements of Grainger. Grainger makes no representations as to the appropriateness, accuracy, completeness, correctness, currentness, suitability, or validity of any product review or statements posted, including those posted by employees with the Grainger employee badge, and is not liable for any losses, injuries or damages which may result from any such product review or statements. Use of any linked web site provided in a product review or post is at the user's own risk.