Dear customer, Thank you for your inquiry. Regarding this issue, this system includes a filter cartridge and 3/4" NPT inlet/outlet connections. Please contact us at 1-888-352-3558 (8:00 AM - 5:00 PM PST, Mon - Fri) if you have any other questions. Thank you. Kind Regards, Mia Lauren Customer Service Rep

Waterdrop Whole House Scale Inhibitor Inline Water System, Replacement for Aqua-Pure AP430SS, Prevent Scale Build Up On Hot Water Heaters and Boilers, 304 Stainless Steel

Waterdrop Whole House Scale Inhibitor Inline Water System, Replacement for Aqua-Pure AP430SS, Prevent Scale Build Up On Hot Water Heaters and Boilers, 304 Stainless Steel

Q: Will this work mounted on its side, or does it have to be upright?

Dear Tydi, Thank you for your inquiry. Regarding this issue, this whole house scale inline water system can only be installed upright. If you need any further assistance, please feel free to contact us at 1-888-352-3558 (8:00 AM - 5:00 PM PST, Mon - Fri). Thank you. Kind Regards Mia Lauren Customer Service Rep

Q: what is the reason for only installing on the hot water line? Would like to use for entire house, cold water also.

Hi, Thanks for your interest in our AP431 filter product. Please note that this is only designed for cold water line; it is designed to protect water heater placed after it, thank you. If you have contacted us via email but received no reply, please check the Spam/Junk Folder first. Thank you. If you have any other inquiries, please feel free to contact us. 1-888-352-3558 Kind Regards Mia Lauren Customer Service Rep

Q: Are other parts or items needed? Or can you really filter your entire house water with just this? Where do you install it?

Hi, Thanks for your interest in our product. Please note that this is a scale inhibitor. When using this scale inhibition system, we recommend installing a pre-filter as well.You need to install it behind the water meter. https://www.amazon.com/dp/B08XXJSN29/ If you have any other questions, please feel free to contact us. Enjoy the rest of your day! Kind Regards Mia Lauren Customer Service Rep

4.4/5

Product ID: 432721431

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Details

Material
Stainless
External testing certification
RoHS
Brand
Waterdrop
UPC
840814194058
Unit count
1.0 count

💧Food-grade polyphosphates scale inhibition

⚙️10 GPM high flow rate

🛡️304 stainless steel durability

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Description

💧 Protect your water, power your life — scale-free and stress-free!

BUILT TO LAST - Premium 304 stainless steel adapter resists rust and corrosion for long-term reliability.
SEAMLESS HIGH FLOW - 3/4" NPT inlet/outlet supports a robust 10 GPM flow rate, maintaining stable water pressure without compromise.
EFFORTLESS SCALE DEFENSE - Food-grade polyphosphates actively prevent scale buildup, protecting your entire water system.
SIX MONTHS OF PROTECTION - Each cartridge delivers half a year of scale inhibition, ensuring consistent water quality and system health.
BOOST APPLIANCE EFFICIENCY - Keeps water heaters, boilers, and dishwashers running smoother and longer by reducing scale deposits.

The Waterdrop WD-W65 Whole House Scale Inhibitor uses food-grade polyphosphates to prevent scale buildup in hot water heaters, boilers, and plumbing fixtures. Featuring a durable 304 stainless steel adapter and a high flow rate of 10 GPM via 3/4" NPT connections, it enhances appliance efficiency and longevity. Designed for easy inline installation on cold water supply lines, each cartridge lasts approximately six months, delivering consistent scale inhibition without restricting water flow.