Skip to content
  • 💸 Get more for your money with 20-40% off! 💸
  • 💸 Get more for your money with 20-40% off! 💸
Doheny ShopDoheny Shop
    • No products in the cart.

      Return to shop

  • Cart

    No products in the cart.

    Return to shop

  • Chemicals
    • Clarifiers & Enzymes
    • Stain Removers
    • Alternatives
    • Balancers
    • Chlorine & Bromine
    • Water Testers
    • Value Packs
    • Closing Kits
    • Floating Chlorinators
    • Start-Up Kits
  • Inground
    • Covers
    • Equipment
    • Accessories
    • Paint & Coatings
    • Liners
  • Equipment
    • Filters
    • Multiport Valves
  • Accessories
    • Toys Games & Floats
    • Pool Maintenance
    • Solar Accessories
    • Thermometers
    • Alarms & Timers
Home / Chemicals / Balancers
Sale!
Doheny's Calcium Hardness Reducer, 12 Quarts
Doheny's Calcium Hardness Reducer, 12 Quarts - Image 2
Doheny's Calcium Hardness Reducer, 12 Quarts -Doheny Shop 4880q12 feb2023

Doheny’s Calcium Hardness Reducer, 12 Quarts

$362.00 Original price was: $362.00.$97.99Current price is: $97.99.

Clear
SKU: ZG9OZ 70089 Categories: Balancers, Chemicals
  • The Quality Choice for Smart Shoppers
  • 100% High-Quality Guarantee
  • Secure Payments, Secure Shopping
  • Fast and Secure Payments
Browse
  • Accessories
    • Alarms & Timers
    • Pool Maintenance
      • Brushes
      • Hoses
      • Rakes & Skimmers
      • Vacuum Heads
    • Solar Accessories
    • Thermometers
    • Toys Games & Floats
      • Lounges, Floats & Games
  • Chemicals
    • Alternatives
    • Balancers
    • Chlorine & Bromine
    • Clarifiers & Enzymes
    • Closing Kits
    • Floating Chlorinators
    • Stain Removers
    • Start-Up Kits
    • Value Packs
    • Water Testers
  • Equipment
    • Filters
      • Filter Cartridges
    • Multiport Valves
  • Inground
    • Accessories
      • Diving Boards
      • Lighting & Fountains
      • Pool Ladders
      • Pool Slides
      • Pool Steps
      • Storage & Fencing
    • Covers
      • Safety Covers
        • Accessories
        • Onground Covers
      • Solar Covers
        • Accessories
        • Alternatives
        • Rectangular Covers
        • Reels
      • Winter Covers
        • Cover Accessories
        • Rectangular Leaf Nets
        • Rectangular Mesh Covers
        • Rectangular Solid Covers
        • Winter Accessories
    • Equipment
      • Cleaners
        • Cleaner Accessories
        • Pressure Cleaners
        • Robotic Cleaners
        • Suction Cleaners
        • Vacuums
      • Filters
        • Cartridge Filters
        • DE Filters
        • Filter Media
        • Sand Filters
      • Heaters
        • Heat Pumps
        • Propane & Gas Heaters
      • Pumps
      • Salt Systems
        • Chlorine Generators
        • Replacement Cells
    • Liners
      • Accessories
    • Paint & Coatings
  • Uncategorized
  • Description
  • Additional information
  • Reviews (0)

Quickly lowers hardness levels. Ideal calcium hardness range is 200-400 ppm.

Quarts

1 qt, 4 qts, 12 qts

Reviews

There are no reviews yet.

Be the first to review “Doheny’s Calcium Hardness Reducer, 12 Quarts” Cancel reply

Related products

Sale!
SeaKlear Chitosan Clarifier, 1 Qt
Quick View

Chemicals

SeaKlear Chitosan Clarifier, 1 Qt

$24.99 Original price was: $24.99.$17.49Current price is: $17.49.
Sale!
Natural Chemistry Filter Perfect, 4 Liter
Quick View

Chemicals

Natural Chemistry Filter Perfect, 4 Liter

$61.99 Original price was: $61.99.$43.39Current price is: $43.39.
Sale!
Natural Chemistry Clean & Perfect, 288 Oz
Quick View

Chemicals

Natural Chemistry Clean & Perfect, 288 Oz

$119.99 Original price was: $119.99.$83.99Current price is: $83.99.
Sale!
Jack's Magic The Tile Plus Stuff
Quick View

Chemicals

Jack’s Magic The Tile Plus Stuff

$29.99 Original price was: $29.99.$20.99Current price is: $20.99.
Sale!
Jack's Magic The Iron, Cobalt & Spot Etching Stuff, 2 Lb
Quick View

Chemicals

Jack’s Magic The Iron, Cobalt & Spot Etching Stuff, 2 Lb

$60.99 Original price was: $60.99.$42.69Current price is: $42.69.
Sale!
Doheny's Chlorine Skimmer Sticks, 10 Lb
Quick View

Chemicals

Doheny’s Chlorine Skimmer Sticks, 10 Lb

$109.99 Original price was: $109.99.$76.99Current price is: $76.99.
Sale!
Jack's Magic The Copper & Scale Stuff, 10 Lb
Quick View

Chemicals

Jack’s Magic The Copper & Scale Stuff, 10 Lb

$109.99 Original price was: $109.99.$76.99Current price is: $76.99.
Sale!
Jack's Magic The Blue Stuff, 2 Qt
Quick View

Chemicals

Jack’s Magic The Blue Stuff, 2 Qt

$61.59 Original price was: $61.59.$43.11Current price is: $43.11.
Products
  • Pleatco Filtration PHG3672-EC DE Grid Filter Replacement For Unicel: PG-1906, Filbur: FC-9460, 1 Pack Pleatco Filtration PHG3672-EC DE Grid Filter Replacement For Unicel: PG-1906, Filbur: FC-9460, 1 Pack $44.99 Original price was: $44.99.$31.49Current price is: $31.49.
  • Doheny's Max-Force Riplock Winter Cover For 30x50 Ft Rectangular Pools, 16 Year Warranty Doheny's Max-Force Riplock Winter Cover For 30x50 Ft Rectangular Pools, 16 Year Warranty $308.00 Original price was: $308.00.$95.99Current price is: $95.99.
LEGAL
  • Privacy Policy
  • Shipping & Returns
  • FAQ
  • Returns & Exchanges
  • Term and Conditions
CUSTOMER SERVICE
  • My account
  • Delivery
  • Payment Method
  • Contact Us
  • About Us
Signup for Newsletter

Sign up for exclusive offers, original stories, events and more.

    Copyright 2026 © www.dohenystore.com
    • Chemicals
      • Clarifiers & Enzymes
      • Stain Removers
      • Alternatives
      • Balancers
      • Chlorine & Bromine
      • Water Testers
      • Value Packs
      • Closing Kits
      • Floating Chlorinators
      • Start-Up Kits
    • Inground
      • Covers
      • Equipment
      • Accessories
      • Paint & Coatings
      • Liners
    • Equipment
      • Filters
      • Multiport Valves
    • Accessories
      • Toys Games & Floats
      • Pool Maintenance
      • Solar Accessories
      • Thermometers
      • Alarms & Timers
    • Login

    Login

    Lost your password?

    Register

    Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy.