---
product_id: 61125318
title: "RectorSeal Calci-Free 68708 Tankless Water Heater Cleaner, Easy Application, Plumbing, 1.2 lb"
brand: "rectorseal"
price: "₨19725"
currency: LKR
in_stock: true
reviews_count: 10
category: "Rectorseal"
url: https://www.desertcart.lk/products/61125318-rectorseal-calci-free-68708-tankless-water-heater-cleaner-easy-application
store_origin: LK
region: Sri Lanka
---

# Fast-acting in 20 mins Restores water flow & pressure Unique organic/inorganic formula RectorSeal Calci-Free 68708 Tankless Water Heater Cleaner, Easy Application, Plumbing, 1.2 lb

**Brand:** rectorseal
**Price:** ₨19725
**Availability:** ✅ In Stock

## Summary

> ⚡ Clean smarter, flow faster — don’t let scale slow you down!

## Quick Answers

- **What is this?** RectorSeal Calci-Free 68708 Tankless Water Heater Cleaner, Easy Application, Plumbing, 1.2 lb by rectorseal
- **How much does it cost?** ₨19725 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/61125318-rectorseal-calci-free-68708-tankless-water-heater-cleaner-easy-application)

## Best For

- rectorseal enthusiasts

## Why This Product

- Trusted rectorseal brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted by Pros:** Preferred by HVAC and plumbing experts for reliable, routine maintenance in residential & commercial setups.
- • **Rapid Restoration:** Revive your tankless heater’s flow and pressure in just 20 minutes—no downtime, no hassle.
- • **Effortless Application:** No splash crystals and no strong odors—clean your heater easily and safely every time.
- • **Advanced Descaling Power:** Outperforms vinegar with a patented blend of organic and inorganic cleaners plus corrosion inhibitors.
- • **Cost-Effective Longevity:** Extend your tankless water heater’s lifespan and avoid costly replacements with routine use.

## Overview

RectorSeal Calci-Free 68708 is a fast-acting, biodegradable descaler designed specifically for tankless water heaters. Its patented formula combines organic and inorganic cleaners with corrosion inhibitors to efficiently remove calcium and solid deposits, restoring optimal water flow and pressure within 20 minutes. Easy to apply with no strong odor or splash risk, it’s the professional’s choice for prolonging heater lifespan and maintaining peak performance in both residential and commercial settings.

## Description

Product Description Calci-Free is an efficient chemical descaler specifically formulated for tankless water heaters found in residential and commercial applications. Tankless water heater cleaner is easy to use with no strong odor. Can easily be applied to any type of tankless water heater. No splash crystal product. Fast acting and cleans heat exchanger quickly. More effective than vinegar; restores water flow, pressure, and circulation in twenty minutes. Calci-Free tankless water heater flush; 1.2 lbs. Contains a unique combination of organic and inorganic cleaners and patented corrosion inhibitors. For routine cleaning to remove calcium and other solid deposits from heating coils in tankless water heaters. FOR THE TRADESMAN: RectorSeal is recognized as a leading provider of quality solutions for the professional trades serving heating, ventilation, and air conditioning (HVAC/R), plumbing, electrical, and construction markets. From the Manufacturer Calci-Free Tankless Water Heater Flush Cleans heater coils thoroughly. Restores pressure and circulation in minutes, with no strong odor. Calci-Free is a unique, economical, biodegradable cleaner containing a combination of organic, inorganic and corrosion inhibiting ingredients. It is easy to use and works twice as fast as other cleaners.-1.2-Pound (12-Piece)

Review: Works better than Flow Aide in my opinion - Background you can skip: We have run our Tankless Noritz N0751 since 2008. We initially had the plumber come by yearly to do a flush at an outrageous cost and they used vinegar. 6 years in the unit would not kick in a fast, water flow was down and sometimes wouldnt even kick in. Plumber diagnosis: we have hard water and these units simply wont last long in that environment. Buy a new one for 3000$ for a retro fit install. I booted them out. Installed - should have done it years ago- isolation valves and used flow aide based on online recommendations. Ran diluted flow aide for one hour and came down to find the flush water black. The machine ran like new. Conclusion: Flow Aide > Vinegar, i.e. Flow Aide is better at cleaning than vinegar. However, flow Aide has gotten expensive. Recently I cleaned with the last bit of Flow Aide and when it ran clean I decided to try RectorSeal right after to see if it would still help. Whaddaya know, after 45 minutes i came down to find the water BLACK again. So my view is: RectorSeal > Flow Aide > Vinegar. Pros: Cleans well in well water / hard water environment. Our Nortiz Tankless is turning 15 with no end in sight. Beats the alternatives in effectiveness ... and in price Cons: None yet.
Review: Works! - Really works. Effective.

## Features

- APPLICATION: Calci-Free is an efficient chemical descaler specifically formulated for tankless water heaters found in residential and commercial applications
- EASY APPLICATION: Tankless water heater cleaner is easy to use with no strong odor; can easily be applied to any type of tankless water heater; no splash crystal product
- CONVENIENT: Fast acting and cleans heat exchanger quickly; more effective than vinegar; restores water flow, pressure, and circulation in twenty minutes
- SPECIFICATIONS: Calci-Free tankless water heater flush; 1.2 lbs; contains a unique combination of organic and inorganic cleaners and patented corrosion inhibitors; for routine cleaning to remove calcium and other solid deposits from heating coils in tankless water heaters
- FOR THE TRADESMAN: RectorSeal is recognized as a leading provider of quality solutions for the professional trades serving heating, ventilation, and air conditioning (HVAC/R), plumbing, electrical, and construction markets

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B008A3UEAU |
| Batteries Included? | No |
| Batteries Required? | No |
| Brand | Rectorseal |
| Color | White |
| Customer Reviews | 4.6 4.6 out of 5 stars (680) |
| Date First Available | June 12, 2012 |
| Efficiency | increases |
| Global Trade Identification Number | 00021449687089 |
| Included Components | Calci-Free |
| Is Electric | Yes |
| Item Depth | 2.75 Inches |
| Item Package Quantity | 1 |
| Item Weight | 1.2 pounds |
| Item model number | 68708 |
| Manufacturer | Rectorseal |
| Mounting Type | Wall |
| Part Number | 68708 |
| Product Dimensions | 3"W x 6"H |
| Special Feature | Fast acting, More effective than vinegar |
| Special Features | Fast acting, More effective than vinegar |
| Style | Tankless Water Heater Cleaner |
| UPC | 021449687089 |

## Product Details

- **Brand:** Rectorseal
- **Capacity:** 100 Pounds
- **Power Source:** Corded Electric
- **Product Dimensions:** 3"W x 6"H
- **Special Feature:** Fast acting, More effective than vinegar

## Images

![RectorSeal Calci-Free 68708 Tankless Water Heater Cleaner, Easy Application, Plumbing, 1.2 lb - Image 1](https://m.media-amazon.com/images/I/51bGUxgiQBL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works better than Flow Aide in my opinion
*by R***V on December 19, 2022*

Background you can skip: We have run our Tankless Noritz N0751 since 2008. We initially had the plumber come by yearly to do a flush at an outrageous cost and they used vinegar. 6 years in the unit would not kick in a fast, water flow was down and sometimes wouldnt even kick in. Plumber diagnosis: we have hard water and these units simply wont last long in that environment. Buy a new one for 3000$ for a retro fit install. I booted them out. Installed - should have done it years ago- isolation valves and used flow aide based on online recommendations. Ran diluted flow aide for one hour and came down to find the flush water black. The machine ran like new. Conclusion: Flow Aide > Vinegar, i.e. Flow Aide is better at cleaning than vinegar. However, flow Aide has gotten expensive. Recently I cleaned with the last bit of Flow Aide and when it ran clean I decided to try RectorSeal right after to see if it would still help. Whaddaya know, after 45 minutes i came down to find the water BLACK again. So my view is: RectorSeal > Flow Aide > Vinegar. Pros: Cleans well in well water / hard water environment. Our Nortiz Tankless is turning 15 with no end in sight. Beats the alternatives in effectiveness ... and in price Cons: None yet.

### ⭐⭐⭐⭐⭐ Works!
*by D***D on October 25, 2025*

Really works. Effective.

### ⭐⭐⭐⭐⭐ let this potion do the work for you.
*by S***E on March 24, 2024*

Let me tell you about this magical little potion called the Rectorseal Calci-Free Tankless Water Heater Flush. First off, the name is a mouthful – it's like they couldn't decide whether to call it a flush, a descaler, or a fancy spa treatment for your water heater. When you open the tub, it looks like a batch of those fizzy bath bombs that are all the rage these days. But instead of turning your tub into a lavender-scented oasis, this stuff is going to give your tankless water heater the deep cleaning it deserves. And let's be real, those things probably need it after all the hot water abuse we put them through. The instructions are simple enough: dump it in, let it do its magic, and boom – your water heater is as good as new. No more weird buildup or funky smells when you turn on the shower. Just pure, unadulterated hot water goodness. Now, I know what you're thinking: "But wait, couldn't I just use some good old-fashioned vinegar for this?" Sure, you could. But where's the fun in that? The Rectorseal Calci-Free is like the spa day your water heater never knew it needed. It's like a deep tissue massage for all those hard-to-reach places. And let's not forget the best part: you don't even have to get your hands dirty. Just toss it in and let the little fizzy guys go to town. It's like having a tiny cleaning crew working tirelessly inside your water heater. So, if you're tired of dealing with mineral buildup and want to give your tankless water heater the royal treatment, do yourself a favor and grab some Rectorseal Calci-Free.

## Frequently Bought Together

- Rectorseal 68708 1.2-Pound Calci-Free Tankless Water Heater Flush
- 6699 Tankless Water Heater Flushing Kit Includes 1/6HP Submersible Sump Pump with Two Adapters & 3 Gallons Pail with Bucket Lid Opener & Two 1/2” Dia X 6’ PVC Hoses with Washers
- J.C. Whitlam FLOW32 Flow-Aide System Descaler ,32 ounces (1 quart) , White

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-03*