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Customers who have purchased whole-house water filters have also been:
to water filters index - to whole house water filter systems - to UV water filter systems - to countertop UV water filters
to hot & cold stainless steel water filter systems - to Cuno replacement filters - to Cuno icemaker filters
to commercial stainless steel water filter systems - to water softeners - to refrigerator filters
to Aquapure water softeners - to Cuno drinking water filter systems - to Lakos TwistIIClean filters
to Cuno water filtration products - index

Simple, straightforward and low shipping rates for these whole-house filtration systems.

Heavy Duty Whole House Water Filter Systems by Cuno®

Get great tasting water from any faucet in the house with these whole house filtration systems from Cuno^®. Having clean, refreshing drinking water for your family is a must, and with one less thing to worry about, you'll have more time to enjoy the other things in your life. These filtration systems are easy to install, and will save you money since you will no longer need to purchase bottled water.

Heavy-Duty High-Flow Whole House Water Filter Systems

Whole House Water Filter Systems - For Larger 2.5+ Bathroom Homes

picture of an 801-C system with included accessories

Model #AP801-C shown with
included accessories

Key Features & Benefits

Built in pressure relief button makes replacing filter a breeze

Installs on the main cold water line after entering the home

Includes an Aqua-grip filter wrench, and installation instructions

High-flow capacity works great for larger households

Drastically reduces dirt, rust, bad taste, odor, and chlorine from your water

Max temperature: 100°F

Max pressure: 100 PSI

Complete whole-house water filter systems with filters & mounting kit

Model #	Connection	Flow Rate	Description	Price & Quantity
AP801-C	1" NPT	20 gpm	white head with blue housing body • includes (1) AP810 filter, wrench, & mounting bracket	$109.93

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Great whole-house water filter housings

Model #	Connection	Flow Rate	Description	Price & Quantity
AP801	1" NPT	20 gpm	white head with blue housing body • includes filter wrench	$89.46
AP802	1" NPT	45 gpm	white head with blue housing body • includes filter wrench	$123.04

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Most Common High Flow Whole House Replacement Filter Cartridges
Click here for a complete list of replacement Cuno^® filter cartridges

Filter #	Material	Fits Housing Series	Micron Rating	Flow Rate	Reduces (Application)		Price & Quantity (each)
Filter #	Material	Fits Housing Series	Micron Rating	Flow Rate	Dirt/Rust	Taste/Odor	Price & Quantity (each)
AP810	polypropylene	801	5	20 - 28 gpm	√		$25.95
AP811	polypropylene	801	25	20 - 28 gpm	√		$30.96
AP814	polypropylene	801	50	20 - 28 gpm	√		$28.44
AP815	carbon	801	5	10 gpm	√	√	replaced by AP817
AP817	carbon	801	5	10 gpm	√	√	$37.80
AP810-2	polypropylene	802	5	45 - 60 gpm	√		$45.88
AP811-2	polypropylene	802	25	45 - 60 gpm	√		$51.19
AP814-2	polypropylene	802	50	45 - 60 gpm	√		$52.84
AP817-2	carbon	802	5	20 gpm	√	√	$79.99

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to filter cartridge installation instructions - to our complete Cuno filter cartridge page

Accessories & Common Parts For Heavy Duty Whole House Systems

Part #	Description	Price & Quantity
AP-MB801	mounting bracket for AP800 series housings	$19.98
O-RING	o-ring for AP800 series housings	$2.55
WRENCH	wrench for all AP800 series housings	$9.61
STRAP WRENCH	adjustable strap wrench for all AP800 series housings	$11.20
SUPER LUBE	drinking water safe, non-toxic lube for o-rings - 1/2 ounce	$3.29

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Frequently Asked Questions

Q. "What is a micron rating?"
A. The average size of the openings between pieces of the filter media are represented in microns. For example, a 40-micron filter has larger openings than a 5-micron filter. Consequently, the 40-micron filter element will let larger particles pass through the filter than the 5-micron element.

As a general rule, the smaller micron rating for a filter is better, but as with most everything, there is a trade-off. Flow capability usually drops off as the micron rating gets smaller. To overcome this, low micron-rating filters must have larger elements to keep from sacrificing precious flow.

Q. "I just installed a new filter cartridge and/or system and my water is cloudy/white. Why?"
A. After you install a new filter (this is the case with any/all brands of filter cartridges) you should run it for a few minutes. Generally cloudy or white water indicates air in the line and this is natural and normal with the replacement of a cartridge. Air will enter in the housing, lines and cartridge. Just run the water for a few (up to 5) minutes and the cloudy conditions will go away (unless you have VERY cold water in which case it is the oxygen in the water that could be making the water look cloudy). It is always a good idea to run the water free flowing for a few minutes after installing any brand or type of new filter cartridge. Also, when you're using drinking-water filter cartridges that contain carbon, it is recommended that you run the faucet tap for at least 20 seconds prior to each use to flush very fine black carbon powder that may be present.

Q. "Why do some of the filter cartridges have lower flow rates than others?"
A. This is because the AP817 is a carbon media filter cartridge not only designed to reduce dirt and rust, but chlorine and odor from water, vs. the AP810 which is designed to reduce only dirt and rust. The lower flow rate is necessary for the water to have a long enough contact time with the carbon to allow it to do the job.

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