Aqua-Pure AP904 head with 1-inch inlet/outlet for easy installation.
Aqua-Pure AP904 sanitary quick-change design enables fast cartridge replacement.
Aqua-Pure AP904 replacement cartridge AP917HD-S for simple maintenance.
Aqua-Pure AP904 system rated for 100,000 gallons of filtration.
Aqua-Pure AP904 with 1-inch ports supports up to 20 gpm flow.
Aqua-Pure AP904 uses polyphosphates to inhibit scale buildup.
Aqua-Pure AP904 head compatible with copper piping for retrofitting.
Aqua-Pure AP904 NSF certified to 42 and 372 standards for filtration safety.

Aqua-Pure

Aqua-Pure AP904: 100,000-Gallon Whole House Sanitary Quick Change Water Filter System

High-performance tools and home improvement made for confident daily results

$578.13

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Why customers choose TaskHolt Tools

All-in-one protection for your home's water

The Aqua-Pure AP904 is a whole-house filtration system designed to sit downstream from your water meter. Its Sanitary Quick Change (SQC) design makes cartridge service fast and clean, so you can maintain consistent water quality across every faucet, shower, and appliance.

Built to address common water quality concerns, the AP904 targets sediment, chlorine taste and odor, and mineral scale. By treating water at the point of entry, you may notice clearer water at every tap and an improved flavor for drinking and cooking. The system also helps protect plumbing fixtures and appliances by reducing potential buildup over time.

What it does

  • Sediment reduction for crisper water and less grit in appliances.
  • Chlorine taste and odor reduction to improve everyday drinking water.
  • Scale inhibition with polyphosphates to help minimize mineral buildup on pipes and surfaces.
  • Cleaner, clearer water at every water source point in the home.

Maintenance and operation

  • Sanitary Quick Change (SQC) design enables fast cartridge replacement—no filter wrench needed.
  • Cartridge life up to 1 year or 100,000 gallons, depending on water quality and usage.
  • Replacement cartridge AP917HD-S is designed for straightforward service with minimal downtime.

Installation and compatibility

The AP904 features a 1-inch inlet and outlet, supporting peak flow rates up to 20 gpm, suitable for many residential setups. The durable 304 stainless steel head resists corrosion and is designed to mount on existing copper piping. It is compatible with both municipal (chlorinated) and well water systems. NSF Standard 42 and 372 certifications confirm filtration performance and safety standards for everyday use.

With a 100,000-gallon capacity and a robust build, the AP904 is a solid choice for larger homes seeking reliable filtration at the point of entry. Regular maintenance helps ensure cleaner, clearer water from every tap.

FAQ

Q: What is the Aqua-Pure AP904 best used for?

A: A whole-house filtration solution that reduces sediment, improves taste and odor, and helps limit mineral scale at the point of entry.

Q: How often should I replace the AP904 cartridge?

A: Replace every 12 months or at 100,000 gallons, or sooner if you notice reduced flow.

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