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Chromex Tankless Water Heater Flush Kit with Gallon Liquid Descaling Solution and 1/6HP Extra Strength Pump

  • Based on 1,103 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Wednesday, Feb 11
Order within 8 hours and 5 minutes
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Size: Gallon


Features

  • 6-Piece Tankless Water Heater Flush Kit: Includes one 5-gallon bucket with lid, one 1/6 HP pump, two stainless steel hoses, and descaler solution.
  • Works with most all tankless water heaters such as Rinnai, Bosch, Noritz, Rheem, Takagi, Tempra, Navien, Ecosmart, Stiebel, Eccotemp, Atmor, Trutankless, Marey Power, and others.
  • Our cleaning solution removes scale deposits from tankless water heaters, which helps improve its efficacy and lifespan. Its citric acid based, and solvent free formula is safe for use with most metals, PVC, Rubber and ABS plastic hoses and materials. Its also non corrosive and safe for potable water systems.
  • 6 Foot hoses easily connect to tankless heater valves, and the kit will clean most heaters in 30 minutes or less! Usage instructions are included as an info-graphic on this listing as well as with your kit.
  • Works with most all tankless water heaters such as Rinnai, Bosch, Noritz, Rheem, Takagi, Tempra, Navien, Ecosmart, Stiebel, Eccotemp, Atmor, Trutankless, Marey Power, and others. ChromeX manufactures thoughtful tools and accessories for both the do-it-yourselfer and the professional. Customer satisfaction is our main priority, so please dont hesitate to contact us with any questions or concerns.

Brand: Chromex


Capacity: 5 Gallons


Power Source: Corded Electric


Special Feature: citric acid based descaler solution and easy-connect hoses


Color: blue,white,black


Brand: ‎Chromex


Special Feature: ‎citric acid based descaler solution and easy-connect hoses


Color: ‎blue,white,black


Voltage: ‎220 Volts (AC)


Mounting Type: ‎Wall


Is Electric: ‎Yes


Manufacturer: ‎Chromex


Item Depth: ‎14.6 inches


UPC: ‎840140397901


Part Number: ‎CXT2-1101


Item Weight: ‎22 pounds


Package Dimensions: ‎16 x 13 x 13 inches


Item model number: ‎CXT2-1101


Size: ‎Gallon


Special Features: ‎citric acid based descaler solution and easy-connect hoses


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: January 4, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Feb 11

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Best Kit to descale my Tankless water heater !
Size: 1 Quart with 12 Ft Hoses
I am so glad I purchased this flush kit! The extra-long 12 ft hoses made setup incredibly easy, even with my tankless unit being in a tighter spot. The pump is powerful and runs smoothly—much stronger than other kits I’ve tried. I also appreciate that it comes with a certified descaling solution, which gives me peace of mind knowing it’s safe and effective for my system. The whole process was quick and hassle-free, and I noticed an immediate improvement in my water heater’s performance. Everything in the kit feels high-quality, and it’s clear the design was well thought out for convenience and durability. If you own a tankless water heater, this kit is a must-have. It saves time, works exactly as described, and gives you everything you need in one package. Highly recommend! ... show more
Reviewed in the United States on August 23, 2025 by All Things My Home

  • Great complete kit. Highly recommended it
Size: 1 Quart
I didn't realize I needed to do this every year, yeah that's on me. So it's been over 5 years since I had my tankless installed. The water pressure and heat have gotten worse and worse the last year. Till I was really low on psi on the far shower. Using this kit. I ran it for an hour. And man the water was gross and what came out was gross. But ...... Water pressure PSI, and heat are back. I got to turn the water heater down, and the pressure is up across the house. Easy to use and works great. Plan for two hours from start to finish with setup, using it, flushing it, and clean up. ... show more
Reviewed in the United States on December 1, 2025 by Dustin Saiger

  • Excellent Value!
Size: 1 Quart with 12 Ft Hoses
Great kit. Purchased and flushed my tankless hot water heater. This was an easy procedure and facilitates routine maintenance for your hot water heater. Why pay someone else to do this when this kit makes the procedure so easy! It pays for itself after one use!
Reviewed in the United States on December 18, 2025 by chipsterguy

  • Works on Rinnani RUC80
Size: Gallon
Last year I hired a professional company to come and flush the tankless water heater in our newly acquired home. They charged $364 dollars. Most of the time was the technician literally sitting on the floor and playing on his phone while the pump did the work. I couldn't believe this service cost this much money and was enfuriated. A year later, it was time for another flush. I did some research on YouTube to see what the process entailed, and combined it with what I observed as the tech did the work a year prior and felt comfortable trying it myself. I found this kit, which was highly rated here on Amazon. The process is very straight forward once you understand what it is trying to do with the water flow, chemicals and pump. Let it run for an hour, and resulted in a lot of "crud" cleaned out of the system. Worked great! Saved HUNDREDS of dollars doing it myself and I'm very thankful. ... show more
Reviewed in the United States on January 12, 2026 by Webb Pickersgill

  • Quality product. Easy to use. Worth the money.
Size: 1 Quart
Solid product. My thoughts, use a sharpie write out order of operations for descale on the inside of lid. IE shut off water to house, hook up hoses etc. for your home. Sharpie outside of bucket with, last year of service of water heater. Plan beyond your memory or life for your family. Other than that, only use the contents for this task to keep from fouling the pump or hose threads. ... show more
Reviewed in the United States on December 19, 2025 by Kindle Customer

  • This is a maintenance must have
Size: 1 Quart
This kit has everything you need to flush you system. The pump is powerful and quiet while circulating the cleaning Descaling solution through the system. The well constructed color coded hoses were a welcome surprise and the plastic lift platform for the submersible pump worked exceptionally well. When finished everything fits back into the bucket for convenient storage until you system needs flushing again. Well worth the investment for this necessary maintenance process. ... show more
Reviewed in the United States on November 24, 2025 by Tammy

  • Very easy to use!
Size: 1 Quart
Very easy to use and saves hundreds in plumber bills! worked great to clean our tankless water system!
Reviewed in the United States on January 9, 2026 by ReggieRescue

  • Simple instructions, good value
Size: 1 Quart with 12 Ft Hoses
Super easy to use. Very clear instructions provided in a step by step process. Hoses and pump provide are durable and provide good value for what its worth.
Reviewed in the United States on February 1, 2026 by Chazz peters Chazz peters

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