Search  for anything...
3M

3M Aqua-Pure Whole House Scale Inhibition Inline Water System AP430SS, Prevents Scale Build Up On Hot Water Heaters and Boilers

  • Based on 4,791 reviews
Condition: New
Checking for product changes
$101.99 Why this price?
Save $0.01 was $102.00

Buy Now, Pay Later


As low as $17.00 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Nov 26
Order within 2 hours and 4 minutes
Available payment plans shown during checkout

Style: AP430 System


Features

  • Helps Inhibit Scale: Polyphosphates included in This Product bind calcium and magnesium hardness minerals, preventing them from becoming a solid to help reduce the build-up of mineral scale in pipes and water using appliances
  • Helps Protect Hot Water Heaters: Extend the life of water-using appliances such as water heaters, clothes washers and dishwashing machines, as well as plumbing fixtures like faucets, pipes and shower heads by reducing scale build-up and corrosion
  • Not a Filter, A Scale Reduction System: System diverts only a small portion of water passing through the system head into the cartridge to inject polyphosphates in minute concentrations and return it to the water supply to help reduce scale build-up
  • Minute concentrations of polyphosphates help reduce scale build-up by inhibiting the build-up of hardness minerals onto metallic surfaces. Polyphosphates also help reduce corrosion by forming a thin protective layer on the inner-surface of pipes
  • Maintains Efficiency: By Inhibiting Scale Build Up On Heating Elements, Helps Maintain Water Heater Efficiency
  • Easy To Replace: Easy Change Out Of The 3M Aqua-Pure Ap431 Replacement Water Cartridge Makes System Maintenance Easier
  • High Flow Rates: The AP430SS provides unrestricted flow of up to 10 gpm (37.9 lpm) when installed with 3/4 NPT inlet/outlet connections
  • System is to be installed on cold water line feeding water to the water heater. Included System Head fittings are two 3/4" NPT (female) connections. Additional parts and tools are required for installation and not included
  • For parts and tools required, read all instructions carefully and measure your cold water line feed pipe before attempting to start installation
  • Binds calcium and magnesium hardness minerals, preventing them from precipitating out of solution and building up on metallic surfaces
  • Contains Siliphos, a 100% pure food grade scale inhibitor approved by USDA
  • Stainless Steel Head
  • Flow rate 6 gallons per minute
  • Max operating Temp 100F

Description

The 3M Aqua-Pure whole house scale inhibition inline water system AP430SS is designed to help reduce scale build-up and corrosion - thereby helping to extend the life on hot water-using appliances such as water heaters (standard gas, standard electric and tankless), boilers, clothes washers and dishwashing machines, and on plumbing fixtures like faucets, pipes, and shower heads. The AP430SS provides a flow of up to 10 gallons per minute (37.9 liters per minute) when installed with 3/4” NPT inlet/outlet connections. Scale is calcium and magnesium mineral deposits that often form when hard water is heated. Water hardness is responsible for most scale formation in pipes, water heaters, finishes and flat surfaces, and other water using appliances. Over the time scale build-up can significantly shorten the life of any water-using appliance. Also scale buildup inside pipes causes loss of water pressure as the interior gets smaller and smaller over time. The AP430SS contains polyphosphates to bind calcium and magnesium hardness minerals, helping to prevent them from precipitating out (or becoming a solid) and building up on metallic surfaces. Polyphosphates also helps reduce corrosion by forming a thin protective layer on the metal surface. The 3M Scale Inhibition Water System AP430SS is tested by NSF International to NSF/ANSI Std. 42 for material and structural requirements only. The overall single vessel/cartridge design of the AP430SS makes the 3M Aqua-Pure AP431 Water Filter Cartridge change-out easy for professionals as well as end users. Change disposable filter cartridge every 6 months or sooner if you observe noticeable reduction in water flow rate. The AP430SS is to be installed on the cold water supply line of the water heater or at point-of-entry of water into the home. Tools and parts required (not included): one 3/4” stop and waste valve (compression type), PTFE tape, two 3/4” male x 3/4” street adapters, one 3/4” compression gate valve, and pipe cutter. Read all instructions carefully before attempting to start installation. The existing shut-off valve remains in place and still acts as the cold water shut-off. This filter system has two 3/4” NPT female connections, but you may need additional adapter fittings (not included) to match up to your piping. Measure your cold water supply line pipe to ensure proper connection sizing and fittings. The AP430SS can be adapted to various pipe sizes by using a reducing adapter (not included) on either end of the 3/4” NPT head. Adapter fittings (not included) can be sweated, threaded, or quick-connected to adapt to various pipe types like copper, galvanized pipe or PEX tubing using appropriate adapter fittings. Use galvanized fittings for installation of galvanized pipe.

Material: Stainless Steel


Product Dimensions: 2.8"D x 2.8"W x 10.2"H


Item Weight: 0.86 Kilograms


External Testing Certification: NSF, ANSI


Product Benefits: Inhibits Lime-Scale Growth


Material: ‎Stainless Steel


Product Dimensions: ‎2.8"D x 2.8"W x 10.2"H


Item Weight: ‎0.86 Kilograms


External Testing Certification: ‎NSF, ANSI


Product Benefits: ‎Inhibits Lime-Scale Growth


Brand: ‎3M


Global Trade Identification Number: ‎74


Unit Count: ‎1.0 Count


Compatible Water Purifier Models: ‎3M AP430SS


Number of Items: ‎1


Manufacturer: ‎3M


Part Number: ‎AP430SS


Item Weight: ‎1.89 pounds


Country of Origin: ‎USA


Item model number: ‎70020003060


Is Discontinued By Manufacturer: ‎No


Size: ‎1 Count (Pack of 1)


Color: ‎White


Style: ‎AP430 System


Item Package Quantity: ‎1


Number Of Pieces: ‎1


Included Components: ‎3M Aqua-Pure Whole House Scale Inhibition Inline Water System AP430SS, Helps Pre


Batteries Included?: ‎No


Batteries Required?: ‎No


Warranty Description: ‎Warranty


National Stock Number: ‎5130-01-073-0811


Date First Available: May 2, 2005


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Nov 26

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Works like a dream
Style: AP430 System
I don't understand the poor reviews that some have posted. The design and build of this anti-scale device is top notch. Most of the water entering the tee passes through, but a small flow is diverted into the bead bed and then reinjected into the main water flow. This is on purpose because the reagent that prevents scale buildup is very effective at very low concentrations, and allows the beads to last a long time. My boiler no longer requires me to acid flush which is time consuming and messy. ... show more
Reviewed in the United States on July 25, 2024 by cycling chemist

  • Simple solution without sodium
Style: AP430 System
This turned out to be a simple, effective solution to two problems associated with my well water. At 12.86 gpg of CaCo3 (Calcium Carbonate) or 2.36 gpg above the "Very Hard" threshold, I had problems with calcium deposits in my boiler from the boiler feed water inflow and problems from my hot water throughout the house. Since all the water going to my dishwasher came from a hot water line, water spots on glassware were unsightly. I installed the Aqua-Pure AP430SS just before both the boiler feed and the supply to the indirect hot water tank. The water spots are gone and there are more soap bubbles when showering. A note to those who think the shiny silver thing on the top assembly is an overpriced ¾" SS tee. . . it's more than that. It is a machined casting with a scoop diverter to cause some of the water flowing through it to flow downward into the canister where it mixes with the food-grade poly phosphate in the replaceable canister before it returns through small holes drilled inside the tee to the pipe above where it ties up the CaCo3 as it flows on its merry way unable to plate our as scale. Time will tell, but, I prefer it over a water softener because it is sodium free which seems like a good thing in this stressful world of high blood pressure. Also, it won't kill the beneficial bugs in my septic system. Whew – enough said! ... show more
Reviewed in the United States on October 22, 2015 by J. Hudon

  • Good protection for hot water heaters and appliances
Style: AP431 Cartridge
Our house has a water softening system, so when I saw that the current filter was 7/8 years old when we purchased our home, I wasn’t too worried about the filter. After living here for 2 1/2 years, we have accidentally let the saltwater brine tank run out a few times, so hard water has made it through. After flushing our instant hot tankless water heater with 2 gallons of vinegar, I saw how much calcium scale was actually in there. So, I decided to purchase a new pre-filter, especially when my plumber friend suggested it would probably be a good idea. However, he said we probably won’t need to replace it again for a number of years, as long as we don’t let the brine tank run out very often 😆 ... show more
Reviewed in the United States on August 12, 2024 by SC

  • Good product so far.
Style: AP430 System
The first one that I ordered leaked on me. It was a small leak but nothing I tried help. Put lots of thread tape changed the brass nipple twice.. and nothing and it still had a small leak.. called amazon customer help and they send me a replacement the next. Day. The Second one I put a new nipple brass pipe and plenty of thread tape and no leaks. Happy with my Purchase and Amazon for always been helpful with returns or exchanges. I. Will update later to see how good it works. ... show more
Reviewed in the United States on October 12, 2024 by ELLIE ELLIE

  • Goodbye Scaling
Style: AP430 System
I recommend this product. The water filter system was easy to install, and I am delighted with the results. The water tastes good and is clear. I installed the Aqua-Pure scale inhibition AP430ss inclined to my water heater. In addition, I installed the AP904 whole house water filter with the scale option. Since the installation of these two products, the house scaling issue has been eliminated. I am also noticing scale deposits are clearing in my dishwasher. Both products were installed on June 29, 2022. As noted in the attached shower head picture, there is no scaling. Before, it would have been running from each spray. The one thing that I did and recommend is to drain and flush your hot water tank. Also, make sure you select the filter with the scaling option. ... show more
Reviewed in the United States on July 11, 2022 by GW GW

  • use proper tape on threads , stainless likes to strip and seize .
Style: AP430 System
pretty straightforward install .
Reviewed in the United States on June 8, 2024 by Jack

  • We have SUPER HARD WATER
Style: AP430 System
This really does work! I do not post reviews often, but this product is worth my time. First, a little history, so that maybe others may benefit from my experience. We have SUPER HARD WATER. I mean it eats through most faucets in 3 years. 5 years-what faucet? It is just a hole in the wall. I have installed both a gas and an electric tankless water heater. I never had any issues with the gas tankless, but with the ELECTRIC Tankless, that is a whole other story. I have a whole house filter, and right after I installed the electric tankless there were issues. Little black charcoal looking rocks began coming out of the faucets as soon as the hot water was turned on for the first few seconds. This created stopped up filters in faucets, shower heads, and all kinds of problems. I was about done with tankless. I guess the superheating of our hard water from direct contact with the elements of the heater caused them. My wife told me to just put a tank back in, and then I saw a suggestion to try this. I told my wife to let me try it, and if it doesn't work, I would put a tank back on. You do have to put this on before the water heater. I don't think it really filters, as much as treats the water. Whatever. All I care about are results. Over a period of three days, there were fewer "particles coming out of the faucets", and then there were none. We are now on week 2 with no 'rocks' coming out of the faucets at all, and my wife is in love again ... with our tankless. ... show more
Reviewed in the United States on June 7, 2018 by S. Anderson

Can't find a product?

Find it on Amazon first, then paste the link below.