Skip Content


High Limit and Circulator Dual Aquastat Controller, Temp. Range High Limit 130° to 240°F, Low Limit

  • Item # 2GZK7
  • My Part #
  • Mfr. Model # L4081B1096
  • Catalog Page # 3030
  • UNSPSC # 39121535
High Limit and Circulator Dual Aquastat Controller, Temp. Range High Limit 130° to 240°F, Low Limit 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

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?

  • Shipping Weight 1.75 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

Restricted: This item is only approved for purchase by Business Accounts. The HONEYWELL dual Aquastat® controller provides boiler water regulation in gas- or oil-fired hydronic heating systems. The immersion-type, liquid-filled sensing element actuates 2 snap switches. One switch operates as a high limit control, the other switch operates as a low limit and/or circulator control. Needs no leveling, mounts in any direction. Easy-to-read, calibrated dial and setpoint adjustments for each switch.

View More

Technical Specs

  • Item Dual Aquastat Controller
  • Type High Limit and Circulator
  • Height (In.) 4
  • Depth (In.) 2-2/3
  • Width (In.) 3-7/8
  • Temp. Range High Limit 130 Degrees to 240 Degrees F, Low Limit 110 Degrees to 220 Degrees F
  • Differential 10 Degrees F Fixed
  • Full Load Amps @ 120VAC 8
  • Full Load Amps @ 240VAC 5.1
  • Locked Rotor Amps @ 120V 48
  • Locked Rotor Amps @ 240V 30.6
  • Burner Control Circuit 24V or 120V
  • Millvolt 025 A @ 025 To 12 Vdc
  • Burner Control Circuit @ 120V (A) 8.0
  • Mounting Horizontal
  • Application High Limit And Circulator
  • Burner Control Circuit @ 24V (A) 5.1
  • System Switching SPST
  • Insulation Depth (In.) 3
  • Humidity Range (% RH) Non-Condensing 0 To 95
  • Agency Compliance UL & CSA
How can we improve our Technical Specifications?

Compliance and Restrictions

  • This item is restricted for international sale.

Alternate Products

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

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.