Quick answers to questions about ordering, compatibility, and installation.
Available in 1 Gallon Jug or Case of 4 Gallons
Extend the life, performance, and energy efficiency of your tanked water heater with Calci-Flush Water Heater Flush, a fast-acting professional-grade descaler designed to remove calcium, lime, and mineral scale buildup caused by hard water. Ideal for both residential and commercial tanked water heaters, Calci-Flush restores proper water flow, improves heating efficiency, and helps prevent premature heater failure.
Over time, hard water mineral deposits accumulate inside tank-style water heaters, leading to reduced hot water output, low water pressure, longer recovery times, and increased energy costs. Calci-Flush works quickly to dissolve stubborn scale deposits, allowing your water heater to operate at peak performance again.
Unlike vinegar or DIY water heater cleaning methods, Calci-Flush is a ready-to-use chemical descaler formulated specifically for water heater maintenance and flushing. It requires no mixing or dilution, works significantly faster than vinegar, and produces minimal odor, making it safe and convenient for use inside homes, apartments, and commercial buildings.
Compatible with most standard gas and electric tanked water heaters, Calci-Flush makes routine water heater descaling and preventive maintenance simple and effective.
✅ Removes Calcium, Lime & Scale Buildup
Dissolves hard water deposits that restrict water flow and reduce heating efficiency
✅ Improves Hot Water Performance & Energy Efficiency
Restores proper circulation and helps lower energy consumption
✅ More Effective Than Vinegar Water Heater Flushes
Professional-grade formula removes tougher mineral buildup faster
✅ Ready-to-Use Water Heater Descaler
No mixing, no dilution, no complicated preparation
✅ Low Odor Formula for Indoor Use
Safer and more comfortable than harsh chemical cleaners
✅ Includes Hose Adapter
Makes flushing and descaling tanked water heaters quick and hassle-free
As the USA’s most trusted MRCOOL HVAC dealer, MRCOOL DIY Direct ensures you get genuine RectorSeal HVAC parts and supplies at competitive prices with fast, reliable shipping. We offer expert support so you can maintain your water heater with confidence and efficiency.
Shop Now: MRCOOL DIY Direct – Calci-Flush Tanked Water Heater Flush
Quick answers to questions about ordering, compatibility, and installation.
Yes. Freedom HVAC Supply sells HVAC equipment and parts to contractors, property owners, and qualified DIY installers. Some products may require professional installation based on local codes.
Product pages include specifications and compatibility details. If you’re unsure, our team can help verify fit before you order.
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Some HVAC equipment must be installed by a licensed professional to meet code requirements or warranty terms. Always review manufacturer guidelines.
Yes. Our support team can assist with product selection based on your application, space, and installation needs.
Manufacturer installation guides and documentation are included or available upon request for most products.
Most HVAC equipment includes a manufacturer warranty when installed according to guidelines. Warranty terms vary by brand and product.
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Larger HVAC equipment ships via freight and should be inspected upon delivery. Delivery details are provided during checkout.
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