Red-D 9" Replacement Cartridge

for Red-D Ultrafiltration Countertop Water Filter

SKU: RED-211CART-9INCH

Red - D 9" Filter | Replacement Ultrafiltration Cartridge - Pure n Natural Systems

Red-D 9" Replacement Cartridge

for Red-D Ultrafiltration Countertop Water Filter

SKU: RED-211CART-9INCH

Translation missing: en.product.general.sale_price $69.95

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About this product

Clean, safer‑tasting water—no tools, 5‑minute swap

Red-D 9" Replacement Cartridge for the Red-D Ultrafiltration Countertop Water Filter

  • Exact replacement for the Red‑D Countertop Ultrafiltration system.
  • Sub‑micron electro‑adsorptive media targets microbes, metals, and chemicals; replace every 6 months.
  • Low pressure drop, high flow—designed for everyday kitchen use.

The proprietary and patented technology used in the Protector Red-D filtration is capable of removing submicron pathogens and inorganic contaminants through electro-adhesion and ion exchange. The filtration efficiency is comparable to ultra membrane filtration with the following exceptions,  it has very low-pressure drop and high flow rates. It also has a high loading capacity so it works effectively in fresh, brackish, or salt waters. The media also includes powdered activated carbon with an average particle size of only 8 microns. At this particle size, activated carbon products remarkably high dynamic adsorption.

For use in the Red-D Ultrafiltration Countertop Water Filter

Replace every 6 months.

Best for

  • Systems that use Protector Red-D ultrafiltration cartridges
  • Homes and commercial locations seeking advanced particulate and microorganism reduction
  • Point-of-use and under-sink water filtration setups
  • Users who want improved water clarity without reverse osmosis
  • Routine cartridge replacement to maintain filtration performance

Specifications

Certifications

  • NSF/ANSI 61
  • USP Class VI tested with endotoxin testing

What's in the box

One (1) Replacement Protector Red-D Ultrafiltration Cartridge

Installation tips

  • Shut Off Water Supply: Turn off the incoming water before replacing the cartridge.
  • Relieve Pressure: Open the faucet to release pressure in the system.
  • Remove Old Cartridge: Unscrew or release the existing Protector Red-D cartridge from its housing.
  • Install New Cartridge: Insert the replacement ultra-filtration cartridge, ensuring proper seating and alignment.
  • Hand-Tighten Only: Secure the housing or cartridge without over-tightening.
  • Restore Water and Flush: Turn the water back on and flush the system for several minutes before use.
  • Check for Leaks: Inspect all connections after installation.
  • No electrical connection or drain line is required.

Frequently asked questions

What does the Protector Red-D ultrafiltration cartridge do?
It uses ultra-filtration media to reduce very fine particles and improve overall water clarity while maintaining water pressure.

Will this fit other housings?
It’s specified for the Red‑D Countertop Ultrafiltration System. For other housings, contact us to confirm fit.

How often should I replace it?
About every 6 months under typical home use. Heavy use or poor source water may shorten this interval.

How does it compare to RO?
Red‑D focuses on sub‑micron contaminants (microbes, particulates, many organics/metals) with very low pressure drop. RO excels at dissolved salts/TDS but needs more pressure and typically wastes some water. Choose based on your water goals.

Is the media certified?
Manufacturer states the media is NSF/ANSI 61 and USP Class VI tested with endotoxin testing; whole‑system certifications vary.

Does this cartridge require a drain connection?
No. Ultra-filtration cartridges operate without a drain line and do not waste water like reverse osmosis systems.

Is professional installation required?
No. Cartridge replacement is user-serviceable and can be completed with basic tools, if any.

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