Problem:
Are you concerned with multiple water problems?

Solution:
A Keystone Filter for sediment and taste/odor removal.

If your preference is carbon block filters, Keystone offers two choices of replacement cartridges. Each of these cartridges can be used in Keystone′s full size housings

• Melt blown polypropylene construction
  
• Meets FDA regulations
  
• Contains no binders or lubricants
  
• Fits Keystone and most other competitive housings
• Replaces any standard 10′′ filter cartridge
  
• Available in 5 and 25 micron
  

• Melt blown polypropylene construction
• Meets FDA regulations
• Contain no binders or lubricants
• Fits other industry standard large diameter (4½′′) 10′′ or 20′′ housings
• Available in 25 and 50 micron

• Wound polypropylene construction
  
• Meets FDA regulations
  
• Fits other industry standard large diameter (4½′′) 10′′ or 20′′ housings
  
• Available in 5 and 25 micron
  

• Wound polypropylene construction
  
• Meets FDA regulations
  
• Fits Keystone and most other competitive housings
• Replaces any standard 10′′ filter cartridge
  
• Available in 5 and 30 micron
  

Problem:
Unpleasant tastes and odors, such as chlorine and/or sulfur (rotten egg), in your drinking water.

Solution:
The Keystone Economical Series 3000 Taste/Odor Filter.

This filter cartridge is made of activated carbon which is proven to remove bad tastes and odors by adsorption. The Series 3000 series filter is tightly wound and uses very fine activated carbon particles to maximize adsorption efficiency. The filter also provides 3 micron sediment removal.

Activated carbon works best when it has sufficient contact time with the water. for best performance, filters must be properly sized and located. If you need help determining the correct filter to use, see chart below or contact our Customer Service Department at 1-800-822-1963 or email us at filters@keystone-filter.com.

Solution
The Keystone 1 micron sediment filter cartridge is the same pleated construction as our 5 and 10 micron cartridges. This is our most tightly woven cartridge for home water applications. Service life will be greatly reduced if heavy sediment, such as sand, is in your water.

Problem:
Unpleasant tastes and odors, such as chlorine and/or sulfur (rotten egg), in your water

Solution:
The Keystone GIANT Taste and Odor Cartridge

Keystone Filter’s standard economical wound carbon cartridge (#310) that you have come to rely on is now available in a Giant version. Like the standard cartridge, this Giant version is made of activated carbon fiber which is proven to remove bad tastes and odors by adsorption. The Giant cartridge is tightly wound and uses very fine activated carbon particles to maximize adsorption efficiency. This economical Giant cartridge is also cellulose-free, making it ideal for well water applications.

Now you can remove tastes and odors throughout the entire house with one easy-to-replace cartridge. Use a 10” cartridge for smaller homes or couple two cartridges together for large homes or other larger applications.

Solution
A Keystone 5 micron sediment removal filter cartridge.

A single 5 micron particle of sediment cannot be seen by the naked eye. In large numbers, they become noticeable and objectionable.