Will it help with hard water? Calcium and Magnesium?

I live in Las Vegas, NV and we have some of the worse hard water. I've had the water filtration system for almost two years and have used this brand the entire time. You can feel the difference immediately.

Does this filter system remove coliform bacteria?

I do not recommend this filter unless you've had your water tested by 3M and they recommend it. I'm a plumbing contractor and I've had serious issues with this filter failing after only a month of use on several occasions (everywhere I've installed it). Water is different everywhere though - getting your water tested is much more reliable in determining whether or not a particular filter is suited to your situation.

Is this suitable for well water? The water has a heavy mineral smell. I want to say it smells like sulphur.

If you look up the filter specs you will have all your questions answered. " aqua-pure ap917hd or ap917hd-s "....With well water I would use a less expensive pre-filter to extend the life of the 917.....John

What is the difference between the ap917hd and the ah917hd-s filter?

The S version has a scale inhibitor

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💧 Elevate your home’s water game—because clean water is the new luxury.

WHOLE HOME PURITY - Enjoy fresh, clean water from every tap—no more guessing which faucet is safe.
HIGH FLOW RATE EFFICIENCY - Supports up to 20 gallons per minute, perfect for busy households without sacrificing pressure.
TRIPLE FILTRATION DEFENSE - Effectively reduces sediment, chlorine taste & odor, and scale for superior water quality.
ROBUST STAINLESS STEEL HEAD - Built to last with a 25-year limited warranty, ensuring durability and peace of mind.
EASY DROP IN CARTRIDGE SYSTEM - Quick-change design means less hassle, more hydration—cartridges sold separately for tailored filtration.

The 3M Aqua-Pure 5621104 is a whole-house water filtration system featuring a durable stainless steel head with a 25-year warranty, capable of filtering up to 20 gallons per minute. It offers triple-level filtration to reduce sediment, chlorine taste and odor, and scale, ensuring fresh, clean water from every tap. Designed for easy cartridge replacement (cartridges sold separately), it fits under the sink and operates manually without batteries.

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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TrustScore 4.5 | 7,300+ reviews

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

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Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

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Manufacturer	3M
Part number	5621104
Item Weight	4.3 Kilograms
Product Dimensions	11.43 x 11.43 x 64.01 cm; 4.3 kg
Item model number	5621104
Color	Blue
Style	Water Filtration System
Material	Stainless Steel Plastic
Power source type	Manual Operation
Installation Method	Under Sink
Item Package Quantity	1
Number Of Pieces	1
Temperature Range	40-100 Degrees Fahrenheit
Flow Rate	20 Gallons Per Minute
Specification met	Certified Frustration-free
Special Features	Chlorine Reduction
Included components	Filter Head & Cartridge
Batteries Included?	No
Batteries Required?	No

3M Aqua-Pure 5621104 Whole House Sanitary Quick Change Water Filter System Ap904, Reduces Sediment, Chlorine Taste And Odor, And Scale,Blue

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