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DROP Whole House Cartridge Filter contains specific filtration media designed to remove chlorine and chloramine from your municipal water supply before it reaches your tap. All with the benefits of DROP leak protection and water conditioning.

Key Features:

  • Effectively removes chlorine and sediment for cleaner water
  • Receive cartridge replacement notifications and system information via texts, emails, or push notifications
  • Full flow 1″ service lines ensure whole house performance of up to 25 GPM
  • Comprehensive warranty: 5 years on tank and valve, 1 year on electronics

DROP offers the only water filters in the world that protect your home from water leaks in addition to providing all the benefits of treated water. When paired with DROP Leak Detectors through the DROP Hub, this system provides all the benefits of a top-of-the-line water filter, home leak protection, and a water conservation system in one. All DROP products are proudly made in the USA.

Filter Options:

CT-20-CB – 20 MICRON CARBON BLOCK FILTER CARTRIDGE –  incorporates surface-modified carbon block filter technology that is highly effective in reducing bad taste, odor, and the reduction of chlorine and from potable drinking water.  Made using high-performance coconut shell carbon, which has more micropores compared to other types of carbon.

CT-03-CB-AMINE – 3 MICRON CARBON BLOCK FILTER CARTRIDGE – incorporates surface-modified carbon block filter technology that is highly effective in reducing bad taste, odor, and the reduction of chlorine and chloramines from potable drinking water. The filters are made using high-performance coconut shell carbon, which has more micropores compared to other types of carbon.


Note: All DROP products require the DROP Hub to function

The DROP Ecosystem

DROP is an exceptionally innovative and revolutionary whole-home water management system that stands out not only for its technological prowess but also for its unparalleled efficiency and effectiveness. With an unwavering commitment to optimizing water usage, DROP has emerged as an industry leader in providing comprehensive solutions for monitoring and managing water consumption in households.

The DROP ecosystem is flexible and expandable, you can easily add new DROP products to your system as needs change. All control is at your fingertips through the intuitive DROP App, available for both Android and Apple devices.

The DROP ecosystem and products do not require any sort of subscription and can function without an internet connection.

Automatic Leak Protection

All DROP Water Filters utilize a patented piston design that provides the ability to shut off water to the home automatically if a leak is detected. This can save you thousands on undiscovered water leaks and resulting water damage.

This next-level home protection feature will immediately send you a notification of the event, and can even be fine-tuned via the settings.

Remove Harmful Contaminants

Our Whole House Cartridge Filter is designed for superior contaminant removal, providing clean and clear water for your entire home. This advanced filtration system effectively captures and removes an array of contaminants, including:

  • Sediment: Finely dispersed particles such as sand and rust.
  • Chlorine and Chloramine: These substances are often added as a disinfectant but can adversely affect taste and smell.

The Whole House Cartridge Filter is easy to install and durable, handling large volumes of water with efficacy. Step up to a higher standard of water quality with the DROP Whole House Cartridge Filter.

Boost Hair & Skin Health

The condition of your skin and hair is linked to the quality of your water. Our filters can eliminate chlorine and chloramines, substances that can cause dry skin and dry hair. By removing these harsh chemicals, you can achieve softer skin and healthier-looking, more lustrous hair.

Better Tasting Water

Harness the power of a water filter designed to eliminate common impurities such as sediment, chlorine, and chloramine. These contaminants, often responsible for unpleasant tastes and odors, are effectively filtered out to deliver cleaner water with less of that “city water taste.”

Switch to our efficient, whole house water filters and experience a noticeable difference in the quality of your home’s water.

The DROP App

  • The DROP app offers real-time alerts and notifications that keep you constantly updated about your water usage and system status.
  • Not tech-savvy? No problem! Everything you need, from controls to troubleshooting, is found within the app. Its intuitive design makes it accessible, easy to navigate and understand.
  • The app enables easy transition between different DROP systems, making it perfect for those managing multiple locations.

How It Works

  • Filtration Stage: Your home’s water enters through the inlet pipe, passing through the cartridge filter. The filter traps and reduces the potential harmful contaminants that can disrupt your water quality.
  • Purified Water Distribution: The filtered water then circulates throughout your home via the outlet pipe, providing you with cleaner, safer water for drinking, cooking, bathing, and more.

Quality, Protection, and Total Control.


Tired of buying expensive bottled water or constantly refilling filter pitchers? Cast all your quality-specific cares upon the DROP Whole House Cartridge Filter.


When paired with DROP leak detectors and the internal water meter, DROP Whole House Cartridge Filters provide the most comprehensive leak protection available. #nailedit


Looking for a convenient way to remove sediment or unwanted chemicals from your water in addition to providing world class leak detection for your home? Heck yes you are. The DROP Whole Home Cartridge Filter is the product for you.

The Benefits of DROP

The DROP App contains a robust amount of notifications to keep you informed. Everything from Leak Detection to Low Salt notifications, DROP has your back for all system events and items. They can be configured to push notifications, text messages, and emails.

Below is a list of all of the unique notifications available to you.

Automatically Respond to Detected Leaks

Worried about water leaks and damage to your home? With DROP Leak Detectors, you will never have to worry about that again! These sensitive devices can detect small traces of water where there should be none. You can configure these leak detectors to notify you of the issue as well as automatically shut off your water through your softener, filter or home protection valve to prevent further leaks and damage.

Long Flow Notification

Has someone left a sink running? This notification will inform you if water is running longer than expected based on your preferences.

Valve Error Notification

Has your softener or filter control valve malfunctioned? This notification will provide you with the correct information to help assess any valve issues in your water softener and/or water filter control valve.

Component Communication Lost Notification

DROP constantly communicates with its device endpoints. If your system is having trouble communicating with one of the devices, you will be notified and able to fix the problem.

Low/High Temperature

DROP Leak Detectors have the ability to notify you of temperature changes based on your preferred temperature ranges. If you lose heat in your home, your DROP Leak Detector will notify you.

Low Salt Notification*

Is your water softener running low on salt? With our patented DROP Salt Sensor, you will be notified if more salt is needed to continue providing softened water.

Slow Leak Test**

This unique test provides the status of your water system overnight by checking for small water leaks. By depressurizing your water pipes while you sleep, we can detect even the smallest leak in your system and help you identify where that is.

Filter Cartridge Notifications

Is your Whole House Cartridge Filter in need of a cartridge replacement? This notification will inform you to replace your cartridge to continue filtering and cleaning your home water.

Power Loss/Restored Notifications

Ever lose power to your important electronic devices and not know about it? This notification will notify you of this event. Never fear, as DROP uses battery backups on nearly all of its devices to continue operating without power.

Low Battery Notifications

DROP Leak Detectors and other DROP components operate on batteries using very low power consumption capable of lasting for years. If these batteries run low in power, you will know when to replace them.

Leaky Toilet Notification

Our technology is able to detect whether your toilet is leaking or not by pinpointing how much water is used during and after a flush.

Water Usage Surpassed Setpoint

Want to know when you have used a certain amount of water? This notification will let you know when you have crossed water use thresholds based on your preferences.

* Specific notification for DROP Water Softeners only.
** Specific notification for the DROP Home Protection Valve only.

Frequently Asked Questions

Cartridge Type



Depth Width Height
13 in 8.25 in 41.25 in
Electrical Information
  • 20 Volts AC
  • 12V DC Power Supply (supplied)
  • All DROP Products have a 9V battery backup solution for power loss. If you ever lose electricity to your home, not only will your Whole House Cartridge Filter continue to filter your water, your Leak Detector system will still respond to leaks in your home.


DROP Whole House Cartridge Filter Sales Sheet

DROP Whole House Cartridge Filter Installation Manual