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Scale Inhibitor Water Filters

Prolong the life of your water heater - tank style, tankless, or boiler system - and save money by reducing the amount of scale build-up on your elements and pipes. These beneficial inhibitors also reduce the corrosion on anode rods, which makes your whole system last longer.

Scale Inhibitor System For Water Heater Applications And Other
Other Point Of Use Water Applications

Helps protect pipe from corrosion
water heater scale inhibitor This scale inhibitor system features:
  • Installs on cold waterline before water heater - can be installed in any direction
  • Helps protect piping from corrosion
  • Maintains efficiency and extends life of system
  • Inhibits scale build-up caused by hard water
  • Translucent dispenser cartridge allows for convenient detection of remaining scale stopper level
  • Slow dissolve rate for long life and consistent dosing
  • 3/4" NPT inlet / outlet connection
  • Up to 10 GPM
  • Venturi tee is constructed from stainless steel and meets all low lead requirements for both federal and state
  • Multi-application design effective on all types of tankless water heaters, tank-type (gas or electric) and hot water / boiler systems
  • Scale Inhibitor media is siliphos which is suitable for drinking and cooking water and all food applications
  • Replacement cartridges are available for these in-line scale inhibitor systems
  • View dimensions

Description Price & Quantity
Water Heater Scale Inhibitor System (AP430)
  Order 6 or more for greater savings!
Replacement Inhibitor Cartridge for water heater scale inhibitor system (AP431)
  Order 10 or more for even greater savings!
Note: Recommended time to change/replace this inhibitor cartridge is 4-6 months.
It's a good idea to purchase a replacement cartridge to have on hand when needed.

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This scale inhibiting water filter is a great device to have inline just before your water heater.

Scale Inhibitor System
Scale inhibitor filtration system This whole house filter application features:
  • Highly effective in treating scale, corrosion and iron build-up for up to 6 months
  • Food-grade hexametaphosphate crystals dissolve slowly in water to prevent lime, scale and rust build-up
  • Forms a protective coating on all metal surfaces, safeguarding against acidity/alkalinity, hardness, chloride and other factors which effect the corrosion of water equipment and pipes
  • Maintains efficiently and extends life of system
  • Net media weight: 24 ounces
  • Up to 5gpm
  • Recommended for use with ice machines, vending machines, food service equipment, air conditioning and many other types of water processing applications
  • Replacement filter (shown left)
  • Dimensions: 2 7/8" x 9 5/8"

Description Price & Quantity
Scale Inhibitor System - includes housing, cartridge and bracket $64.99
Replacement Inhibitor Cartridge for cold water scale inhibitor system
- Save on shipping by ordering replacement cartridge now!
Mounting Bracket $6.65
Note: Recommended time to change/replace this inhibitor cartridge is 4-6 months.
It's a good idea to purchase a replacement cartridge to have on hand when needed.

- Or -
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Scale Inhibitor System For Whole House Applications
For whole house and commercial (large volume) applications
Scale inhibitor filtration system This whole house filter application features:
  • Chemical free scale prevention and protection converts hard water minerals to inactive microscopic crystals, keeping them from building up on your pipes and appliances which extends the life of your system.
  • Designed to be installed on the cold water supply so you can put this ahead of your water heater for additional appliance protection
  • Virtually maintenance free, the cartridge only needs to be replaced every two years
  • Easily installed mounting bracket included
  • Included filter wrench allows cartridge change outs when necessary
  • Inlet ball valve for easy isolation shutoff and filter changes
  • Maximum Pressure: 90psi
  • Maximum Temperature: 100°F
  • Inlet/Outlet Connections: 3/4" FNPT
  • Service Flow Rate: 0.5gpm to 10gpm
  • Designed to work with a maximum of 75 grains of hardness
  • Overall dimensions: 9-13/16" x 5-3/4"

Description Price & Quantity
Scale Inhibitor System
Includes housing, cartridge, mounting bracket, and filter wrench
Replacement Cartridge $265.11
Note: Recommended time to change/replace this inhibitor cartridge is 2 years.
It's a good idea to purchase a replacement cartridge to have on hand when needed.

- Or -
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Click on the links below to view related items & accessories:
whole house water filterswhole house water filters
ultraviolet water purificationUndercounter ultraviolet filter
counter top UV filtercountertop UV filter
under counter water filtersdual stage under counter water filters
filtering shower headsshower heads with built-in water filters
instant 190 degree waterinstant hot water systems (up to 190°F)

Frequently Asked Questions

Q. "Is the scale inhibitor system's active ingredient safe?"
A. Yes! All ingredients used are 100% pure food grade materials, are safe for ingestion by humans, animals, and plants, and do not build up in waste water. The organic phosphates used are approved by the USDA and meet purity requirements as a food additive by the World Health Organization.

Q. "Will these scale inhibitor systems change the taste or odor of water?"
A. No. The active ingredient is colorless, tasteless, and odorless when used as recommended.

Q. "Will these scale inhibitors prolong the life of my plumbing?"
A. These scale inhibitors will help reduce scale build-up and corrosion of pipes and therefore extend the life of your hot water system.

Q. "Do I install the hot water scale inhibitor before or after the water heater?"
A. It should be installed before the water heater somewhere on the cold water line leading to the water heater.

Q. "Can I install this scale inhibitor upside down?"
A. This scale inhibitor can be installed in any direction with the filter pointing in any direction as long as the water flow direction is correct and the system has suitable pressure to function properly. Please note, the manufacturer recommends that the filter be supported if the Venturi tee is not installed horizontally with the filter outlet pointing downward. Also, if the Venturi tee is not installed horizontally with the filter outlet pointing downward, it may be more difficult to catch the remaining water in the line when replacing the cartridge. As always, please consult with a trusted local professional if you are at all unsure about correctly installing this scale inhibitor.

Q. "Does the hot water heater scale inhibitor have to be used only on a hot water heater, or can it be used for any plumbing system?"
A. The "hot water" scale inhibitor can be used on most potable water plumbing systems. However, more water is typically used through cold water systems and the phosphate in the hot water scale inhibitor would be used up much more quickly. For cold water applications we suggest you consider the "cold water" scale inhibitor as it contains quite a bit more food grade phosphate crystals. The hot water heater scale inhibitor is designed to work with most hot water systems including boilers and tankless or tank-type (gas or electric) water heaters.

Q. "What is siliphos?"
A. Siliphos is a water treatment compound; a glass-like Polyphosphate containing Sodium, Calcium Magnesium and Silicate, formulated specifically for the treatment of water problems and to prevent the build-up of scale in plumbing.

Q. "I'm hearing a lot about lead-free these days. What does that have to do with plumbing products and how does the new lead-free legislation affect me?"
A. Basically, the laws implemented Jan. 1st, 2014 require plumbing products that come in contact with drinking water to be essentially lead free (less than 0.25% weighted average). For further information about how the law determines what is lead free, rules regarding which plumbing products must be lead free, and who these laws will affect, please visit our LEAD FREE Plumbing Information page.

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