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ScaleCutter System Refill
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$169.53 each
In Stock
In Stock
Get 24 Tomorrow, Jun 11
Order by 6PM, receive Tomorrow
Free Shipping This item ships free
Easy Returns No restocking fee for 90 days

Product Highlights

Product Highlight: Max Pressure (PSI)
125 MAX PSI
Product Highlight: Used With
ScaleCutter System
Product Highlight: Height
13-1/2"
Product Highlight: Diameter (Inches)
5" Diameter

Description

Rinnai 103000039 ScaleCutter System Refill
A replacement ScaleCutter cartridge (scale inhibitor) used with the Rinnai ScaleCutter System to help reduce scale/lime buildup and corrosion by dissolving a small amount of scale-control product into the water stream.

Key Features:
  • Product type: Replacement Cartridge
  • Type: Scale Inhibitor
  • Reduction claim: Scale, Lime, Corrosion
  • Max pressure: 125 PSI
  • Max water temperature: 140°F
  • Size : 13-1/2" height, 5" diameter
  • Refill kit is described in customer reviews as coming with instructions and a new gasket

Compatibility & Applications:
  • Listed for use with: ScaleCutter System
  • Rinnai describes the ScaleCutter System as serving a tankless water heater or a whole-home heating system
  • Must only be used where the manufacturer specifies this exact part number: 103000039

Installation & Operation Notes:
  • Installation should be performed by a qualified professional and follow the ScaleCutter System and connected equipment documentation (the product listing itself does not provide step-by-step instructions)
  • Rinnai positions ScaleCutter as a system accessory and directs customers to work with a Rinnai PRO for accessories and support
  • After installation, verify the cartridge is seated correctly and check for leaks (especially where a gasket is used)

Maintenance & Troubleshooting:
  • Rinnai notes that scale build-up affects performance and that water should be treated; the ScaleCutter System helps by dissolving scale-control product into the water stream and helping soften/remove existing scale over time
  • This refill cartridge is the service item used to restore the ScaleCutter System's scale-control function once the cartridge media is depleted
  • Customer reviews often describe keeping a spare cartridge on hand and note the refill is a routine maintenance item

Certifications & Compliance:
  • No separate certifications or listings are explicitly stated for this refill cartridge in the provided sources.

User Reviews & Q&A Summary:
  • Reviews commonly describe it as easy to swap in, working as intended, and lasting a long time
  • Several reviewers mention fast shipping/availability as the reason they purchased here

Specs

Product Type:

Replacement Cartridge

Application:

HVAC

Type:

Scale Inhibitor

Max Pressure (PSI):

125

Max Water Temp (°F):

140°F

Used With:

ScaleCutter System

Height:

13-1/2"

Diameter (Inches):

5"

Reduction Claim:

Corrosion

Lime

Scale

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Product Reviews

4.88 out of 24 reviews
100% would recommend this product
4.88
out of 24 Reviews
100% would recommend this product
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5 star
88%
4 star
13%
3 star
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Showing 1-10 of 24 reviews

I will buy this product again

Always have the scale cutter refill in stock, works great and last along time.and you get all the parts you need to change it, new gasket and instructions. Always have a answer to any question you might have and FASTTTTTTTTTTTTTT shipping. why shop anywhere else
Joe
Mid, Delaware
7 months ago
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I would buy this product again

Used in a tankless water heater. The product was delivered quickly and was installed effortlessly. I would use Supply House again as my local supply store would have taken three weeks to get the product.
Jim Bob
San Antonio
7 months ago
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good price

good price
JS
Idaho
10 months ago
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Good product

No complaints, works well.
Chris
Dingmans Ferry, PA
1 years ago
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Arrived promptly as promised

We just installed the scale cutter. We have not had the need to use the refill yet.
Bill
Ohio
2 years ago
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I would purchase this cartridge again

It is a spare unit for the new ScaleCutter system I just installed
BobS
Arizona
3 years ago
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I would buy this product again from this seller.

Item arrived in perfect condition and product looked fresh.
Sam
Beaumont, CA
3 years ago
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The best price

The best price I have seen online, the shipping was fast, and the product was just as good as the sale person said it would be.
Cal
Beaumont, ca,
3 years ago
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Scale cutter

I have used this fir several years and it really helps when you have hard water.
Sunny
Houston, Texas
3 years ago
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I would buy this product again

I worked for a plumbing and heating supply house for 38 years. As my water source comes from a well it has somewhat hard water, I use this product to prevent scale from forming in my instantaneous water heater. Would highly recommend if you have this same scenario.
Stoney
Naples NY
3 years ago
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