Pros, Join Our TradeMaster Program!
  • Sentinel X100 Corrosion Inhibitor (Quart) Product Image
    Add to List
    Add to List
    Sentinel X100 Corrosion Inhibitor (Quart) X100-QT Sentinel X100 Corrosion Inhibitor (Quart)
    SKU: X100-QT
    Brand: Sentinel
    (5)
    $24.62 each
    Fri, May 7 – Fri, May 14
    Arrives
    Fri, May 7 – Fri, May 14
    Questions? Call 1-888-757-4774 or LiveChat Img Chat Us
    Add to List
  • X100 Quick Test Kit Product Image
    Add to List
    Add to List
    X100 Quick Test Kit X100-QUICKTEST X100 Quick Test Kit
    SKU: X100-QUICKTEST
    Brand: Sentinel
    (1)
    $9.09 each
    24
    Fri, Apr 23
    24
    QtyArrives
    24 Fri, Apr 23
    Questions? Call 1-888-757-4774
    Add to List
  • Sentinel X400 System Restorer (Quart) Product Image
    Add to List
    Add to List
    Sentinel X400 System Restorer (Quart) X400-QT Sentinel X400 System Restorer (Quart)
    SKU: X400-QT
    Brand: Sentinel
    (5)
    $23.95 each
    48
    Fri, Apr 23
    48
    QtyArrives
    48 Fri, Apr 23
    Questions? Call 1-888-757-4774
    Add to List
  • Sentinel X100 Corrosion Inhibitor (Gallon) Product Image
    Add to List
    Add to List
    Sentinel X100 Corrosion Inhibitor (Gallon) X100-1GL Sentinel X100 Corrosion Inhibitor (Gallon)
    SKU: X100-1GL
    Brand: Sentinel
    (1)
    $86.95 each
    11
    Fri, Apr 23
    11
    QtyArrives
    11 Fri, Apr 23
    Questions? Call 1-888-757-4774
    Add to List
  • Sentinel X300 New System Cleaner (Quart) Product Image
    Add to List
    Add to List
    Sentinel X300 New System Cleaner (Quart) X300-QT Sentinel X300 New System Cleaner (Quart)
    SKU: X300-QT
    Brand: Sentinel
    $23.96 each
    20
    Fri, Apr 23
    20
    QtyArrives
    20 Fri, Apr 23
    Questions? Call 1-888-757-4774
    Add to List
  • Sentinel X200 Noise Reducer (Quart) Product Image
    Add to List
    Add to List
    Sentinel X200 Noise Reducer (Quart) X200-QT Sentinel X200 Noise Reducer (Quart)
    SKU: X200-QT
    Brand: Sentinel
    (5)
    $21.15 each
    1
    Fri, Apr 23
    1
    QtyArrives
    1 Fri, Apr 23
    Questions? Call 1-888-757-4774
    Add to List
  • Sentinel X400 System Restorer (Gallon) Product Image
    Add to List
    Add to List
    Sentinel X400 System Restorer (Gallon) X400-1GL Sentinel X400 System Restorer (Gallon)
    SKU: X400-1GL
    Brand: Sentinel
    (1)
    $86.64 each
    Fri, May 7 – Fri, May 14
    Arrives
    Fri, May 7 – Fri, May 14
    Questions? Call 1-888-757-4774 or LiveChat Img Chat Us
    Add to List
  • Sentinel X300 New System Cleaner (Gallon) Product Image
    Add to List
    Add to List
    Sentinel X300 New System Cleaner (Gallon) X300-1GL Sentinel X300 New System Cleaner (Gallon)
    SKU: X300-1GL
    Brand: Sentinel
    $91.96 each
    6
    Fri, Apr 23
    6
    QtyArrives
    6 Fri, Apr 23
    Questions? Call 1-888-757-4774
    Add to List
  • Sentinel X200 Noise Reducer (Gallon) Product Image
    Add to List
    Add to List
    Sentinel X200 Noise Reducer (Gallon) X200-1GL Sentinel X200 Noise Reducer (Gallon)
    SKU: X200-1GL
    Brand: Sentinel
    $63.98 each
    2
    Fri, Apr 23
    2
    QtyArrives
    2 Fri, Apr 23
    Questions? Call 1-888-757-4774
    Add to List
FAQs, Manuals & Videos

Resources

Articles

  • Sentinel offers water treatment products and services that provide the best lifetime protection for heating and hot water systems. Originally launched in the UK by Grace Dearborn in 1988 and subsequently a subsidiary of the leading multinational General Electric, Sentinel has operated independently since 2005, expanding its international reach and range of innovative solutions.

NEED HELP?

888-757-4774
Closed Now: Phone Hours
Monday – Thursday
8am–7:45pm ET
Friday
9am–7:45pm ET
  • Product Image

  • Product Image

    Select 2 to 3 items to compare

  • Product Image

    Compare up to 1 more item

Why don't we show the price of this item?

We try to always offer you the lowest prices possible, but some manufacturers require that we only show these low prices once you take further action.

To see the price, simply add the item to your cart or sign in.