Best Water Faucet Filters

On this page, we review these Water Faucet Filters…

Crystal Quest - 6-Stage, Faucet Mount Water Filter System1). Crystal Quest – 6-Stage, Faucet Filter See Review

A Water Faucet Filter attaches to an existing faucet, usually a kitchen faucet. The benefit to a water faucet filter is that it uses your water pressure to speed up the filtration process. This means quick fill ups of your glass or pitcher.

A drawback to these type of filters is that the small filter size, limits the filter life than say, a larger, under-the-sink type filter or system. However, a faucet-mounted filter is quick and convenient to install and use. It’s also inexpensive.

The replacement filters are very reasonably priced, so depending on how much filtered water you need and the quality of your source water, the filter can provide up to 2,000 gallons of quality water. That might be roughly 6-months, maybe even longer.

Use your faucet in regular-mode when filtration is not needed, but a quick twist of the filter housing and you’re in filter-mode, ready to quickly draw clean, filtered water for drinking or cooking.

1. Crystal Quest – 6-Stage, Faucet Mount Water Filter System

Model: CQE-FM-00501

Crystal Quest is involved in all phases of water treatment technology. They perform research and engineering to produce cost-effective, cutting-edge water treatment systems, for Residential, Commercial and Industrial markets worldwide.

Crystal Quest's Faucet Mount Water Filter System
Crystal Quest’s Faucet Mount Water Filter System

What’s included:

This product comes with a single faucet-mounted Filter Housing, and a single Filter Cartridge.


The Crystal Quest Faucet Mount Filter System (CQE-FM-00501) gives you the option of two different finishes, Chrome or White. It uses a filter cartridge that has 6 stages of filtration.
This filter will remove chlorine, VOC’s, THM’s, heavy metals, suspended solids, bacterium like giardia and cryptosporidium, bad taste and odor.

Spec’s of the Replacement Filter Cartridge:

The Crystal Quest CQE-RC-04046 replacement filter fits the CQ Faucet Mount filter system CQE-FM-00501 (chrome or white) .

Replacement Cartridges are available:

Size3.75″ (9.5 cm) long x 2″ (5 cm) diameter
Flow Rate.3 gpm (1.1 lpm)
Capacity2000 gallons (7570 liters)
Filter Life6 months
Crystal Quest's Faucet Mount Filter Cartridge CQE-RC-04046
Crystal Quest’s Faucet Mount Filter Cartridge CQE-RC-04046
Crystal Quest's Faucet Mount Filter Cartridge un-packaged CQE-RC-04046
Crystal Quest’s Faucet Mount Filter Cartridge un-packaged CQE-RC-04046

Product Manual:


Filtration Process:

The Faucet Mount Water Filter System removes (but not limited to) sand, rust, dirt, silt, sediment, cysts, reduces chlorine, bad tastes, and odors. Reduce pesticides and chemicals linked to cancer, reduces iron, mercury, copper cadmium, lead, and other dissolved metals. It also inhibits bacterial growth, algae, fungi, scale, and other microorganisms. Please refer to the diagram on the product page to see the full list of everything this product filters.

CrystalQuest Chrome Faucet Filter Housing
CrystalQuest Chrome Faucet Filter Housing

Stages 1 – Water passes through a 5-micron (0.0002″), pre-filter pad, which removes larger particles such as sand, rust, dirt and other undissolved matter.

Stages 2 – Water now passes through a 1-micron (0.000039″), filter pad, which removes smaller suspended particles such as silt, sediment, cysts and finer undissolved matter.

Stage 3 – Now water passes through a thick layer of Granulated, Coconut Shell Activated Carbon (GAC), which reduces bad tastes and odors, and adsorbs harmful pesticides and chemicals.

Stage 4 – Ion Exchange Resin, which reduces heavy metals such as lead, copper, aluminum, and water hardness (pH).

Stage 5 – Water passes through a combination of Eagle Redox Alloy 6500 and Eagle Redox Alloy 9500 to reduce iron, mercury, copper, nickel, chromium, cadmium, aluminum, lead, other dissolved metals and hydrogen sulfide, and prevents growth of bacteria, algae, fungi, scale, and other microorganisms.

CrystalQuest White Faucet Filter Housing
CrystalQuest White Faucet Filter Housing

Stage 6 – Water then passes through the post filter, a one-micron, post-filter pad, to assure that all fine particulates are removed before dispensing.

From Crystal Quest website:

Faucet Replacement Cartridge is manufactured using Ion Exchange Resin that meets standard ANSI 61/42 Water Quality Association Seal Certified, GAC which meets standard ANSI 42 NSF Certified, KDF which meets standard ANSI 61/42 Certified, and pre and post-micron filter pads which are from ISO 9001 approved manufacturer.
*BPA Free Material.

NSF Standards for Water Treatment Systems:

  • NSF/ANSI 61What is NSF 61? This standard—NSF/ANSI/CAN 61-2020: Drinking Water System Components – Health Effects—sets minimum health effects guidelines for the chemical contaminants and impurities imparted from products, components, and materials to drinking water systems. It does not establish performance, taste and odor, or microbial support requirements. You may read more about NSF/ANSI /CAN 61 here.

My Thoughts on Crystal Quests Faucet Filter:


  • Effectively removes most suspended solids and microorganisms
  • Produces high-quality water.


  • Won’t remove dissolved organic compounds.

NOTE: volatile organic compounds (VOCs) are often components of petroleum fuels, hydraulic fluids, paint thinners, and dry cleaning agents. VOCs are common ground-water contaminants. US Environmental Protection Agency

NOTE: “Trihalomethanes (THMs) are liquid by-products formed when chlorine is used to disinfect water to make it safer to drink. THMs are colorless with a slight chlorine-like scent. These chemicals are called THMs because each contains three halogen molecules: chlorine, bromine or a mixture of chlorine and bromine.” Delaware Health & Human services


Crystal Quest’s Faucet Mounted Water Filter is an effective and quality system. If ordering directly from Crystal Quest, they offer a Discount on the filters when ordering as a subscription. Subscribing can give you a discount while reminding you to change your filter at regular intervals, for the cleanest possible drinking water.

Click to Order direct from

Click to Order from, an Authorized Dealer

Share this article: