1 (844) 338-5520 Call 125 W.Victoria Street, Gardena, CA 90248 Location
Filter Cartridges & Replacement Schedule
No matter what kind of water filter you have, if it uses filter cartridges and/or a membrane it will need to be replaced on a regular basis. The water filter cartridges in an APEX filter system are responsible for removing impurities in your water supply. Its where all the filtration processes take place.
Why Do I Need to Replace the Filter Cartridges?

Why Do I Need to Replace the Filter Cartridges?

Depending on the type of filter cartridge, it will become used up, clogged or ineffective over time. If you don’t change the cartridges a lot can go wrong!

Sediment pre-filters are designed to capture tiny suspended particles that would otherwise clog your faucet aerator, refrigerator, ice maker, dish washer, washing machine or get into your drinking water. Nobody wants to drink sand, grit or insect parts! Over time and depending on what “stuff” is in your water, the sediment pre-filter will get clogged with debris. That’s its job – to trap dirt. As it gets clogged the water flow rate will slow down. That’s why it is important to change the prefilter regularly. It protects you, your filter system and appliances from suspended debris.

carbon cartridges

Activated carbon cartridges eliminate chlorine disinfectants and adsorb organic pollutants like VOCs, pesticides, pharmaceuticals and carcinogenic chemicals. These substances are adsorbed into the activated carbon’s internal pore network. When these pores get filled up with pollutants they cease to remove harmful substances and allow them to pass into your drinking water. Solid block activated carbon cartridges remove chemicals but can also trap suspended particles and need to be replaced to maintain their higher performance features. The same goes for specialty cartridges containing blends of carbon and KDF catalytic media.

Reverse osmosis membranes are constructed of a high-tech semi-permeable membrane that is would tightly around a central core. An RO membrane performs a physical separation of minerals, salts, metals and other pollutants from tap water. This operation works under high pressure and eventually takes a toll on the membrane. Over time the membrane wears out. If not replaced the RO membrane will allow undesirable substances to pass through and enter your drinking water.

Shower head filters have a replaceable filter cartridge inside the housing. It’s easy to forget this filter needs to be replaced just like a drinking water filtration system. Like other filter cartridges, if you don’t change it you’ll be bathing in chlorine and other harmful contaminants.

Alkaline cartridges condition and release beneficial minerals into your drinking water. Over time the water-conditioning media loses potency and needs to be replaced if you want to enjoy the invigorating health benefits of alkaline water.

Sediment pre-filters
Sand, grit, insect parts

Sediment pre-filters

Activated carbon cartridges
Chlorine disinfectants and organic pollutants like VOCs, pesticides, pharmaceuticals and carcinogenic chemicals

Activated carbon cartridges

Reverse osmosis membranes
Minerals, salts, metals and other pollutants

Reverse osmosis membranes

Shower head filters
chlorine and other harmful contaminants

Shower head filters

Figure 1.1 If you don’t change the cartridges a lot can go wrong!

How Often Should the Cartridges be Replaced?

The frequency of cartridge replacement depends on the type of filtration system you have and the nature of your water supply. Each APEX water filtration system has a suggested cartridge replacement schedule. If over time you find that your sediment pre-filter gets clogged very three months, that will become your change-out schedule based on your water conditions. If you notice that your water starts to taste bad after a few months you know it is time to replace the cartridges. If you’re waiting to notice a bad taste or odor you are waiting too long.

Fact is you are just drinking contaminated water until it gets so bad that it stinks or overwhelms your taste buds. If it takes three months to notice something is wrong, you should change the cartridge every two months. Another potential problem with neglecting cartridge replacement is bacteria contamination. When used too long, filter cartridges can begin to grow bacteria which are released into your drinking water. The bottom line is neglecting to change your filter cartridges puts you nd your family at risk. If you have a commercial application like a restaurant or coffee shop, your customers deserve the best. They’ll notice a decline in quality if your water filtration system fails to work properly due to neglect. You could end up losing valuable business and hurt your reputation. Here are some of the problems caused by not changing filter cartridges and RO membranes in a timely manner:

Noticeable chlorine odors
  • Water will taste bad -metallic, chlorine, musty, rotten egg
  • Hard water minerals damage heating elements in appliances and water heaters
  • Clogged filter screens in dish washers, ice makers, refrigerators and washing machines
  • Blue staining in sinks and toilets
  • Rust stains on clothing
  • Low water output from the filter system
  • Heavy metal in your drinking water
  • PCBs, benzene and solvents in the water
Chlorine odors,Bad metallic, rotten egg
Chlorine odors,Bad metallic, rotten egg
Damage heating elements
Damage heating elements
Clogged filter
Clogged filter
Blue staining
Blue staining
Rust stains
Rust stains
Low water output
Low water output
Heavy metal
Heavy metal
PCBs,benzene and solvents
PCBs,benzene and solvents
Countertop Media Water Filters
Countertop Media Water Filters
Filter ModelCartridge [Replacement Interval]
MR-1010RF-1010 [750 gallons or 6 months]
MR-1011RF-1011 [750 gallons or 6 months]
MR-1020RF-1020 [750 gallons or 6 months]
MR-1030RF-1030 [750 gallons or 6 months]
MR-1031RF-1031 [750 gallons or 6 months]
MR-1050RF-1050 [750 gallons or 6 months]
Countertop Reverse Osmosis Water Filters
Countertop Reverse Osmosis Water Filters
Filter Stage
Filter ModelStage 1 [750 gallons
or 6 months]
Stage 2 [750 gallons
or 6 months]
Stage 3 [24 months]Stage 4 [750 gallons
or 6 months]
Stage 5 [12 months]
CT-1010RF-1025RF-1001C M100RF-1001-
CT-1011RF-1025RF-1001C M100RF-1001-
CT-1020RF-1025RF-1001C M100RF-1001RF-1002
CT-1021RF-1025RF-1001C M100RF-1001RF-1002
Under Sink Water Filters
Under Sink Water Filters
Filter Stage
Filter ModelStage 1 [750 gallons
or 6 months]
Stage 2 [750 gallons
or 6 months]
Stage 3 [750 gallons
or 6 months]
MR-2020RF-1000RF-1010-
MR-2030RF-1000RF-1010RF-1010
MR-2031RF-1000RF-1010RF-1021
MR-2032RF-1000RF-1010RF-1050
MR-2033RF-1000RF-1010RF-1015
Under Sink Reverse Osmosis Water Filters
Under Sink Reverse Osmosis Water Filters
Filter Stage
Filter ModelStage 1 [750 gallons
or 6 months]
Stage 2 [750 gallons
or 6 months]
Stage 3 [24 months]Stage 4 [750 gallons
or 6 months]
Stage 5 [12 months]
MR-5050RF-1000RF-1010RF-1010C M50-
MR-5051RF-1000RF-1010RF-1010C M50-
MR-5100RF-1000RF-1010RF-1010C M100-
MR-5101RF-1000RF-1010RF-1010C M100-
MR-6050RF-1000RF-1010RF-1010C M50RF-1002
MR-6051RF-1000RF-1010RF-1010C M50UVA-1C
MR-6100RF-1000RF-1010RF-1010C M100-
EZ-Whole House Filters
EZ-Whole House Filters
Filter ModelCartridge [Replacement Interval]
EZ-1100RF-1000 [750 gallons or 6 months]
EZ-1200RF-1010 [750 gallons or 6 months]
EZ-1300RF-1020 [750 gallons or 6 months]
EZ-2100RF-1012 [750 gallons or 6 months]
EZ-2200RF-1017 [750 gallons or 6 months]
EZ-2300RF-1016 [750 gallons or 6 months]
EZ-3100RF-1008 [750 gallons or 6 months]
EZ-3200RF-1004 [750 gallons or 6 months]
EZ-3300RF-1018 [750 gallons or 6 months]
Big Blue Whole House Filters
Big Blue Whole House Filters
Filter Stage
Filter ModelStage 1 [20,000 gallons
or 6 months]
Stage 2 [20,000 gallons
or 6 months]
Stage 3 [20,000 gallons
or 6 months]
MR-3010RF-1008RF-1018-
MR-3020RF-1008RF-1019RF-1004
MR-3021RF-1008RF-1004RF-1004
MR-3030RF-1008RF-1018RF-1004
Whole Home Filter Systems
Whole Home Filter Systems
Media:Typically, 3-5 years depending on water quality and usage. Contact APEX for replacement media.
Water Softeners
Water Softeners
Resin:Typically, 3-5 years depending on water quality and usage. Contact APEX for replacement media.
Salt:Salt should be three to four inches above the water level in the brine tank. Check every 30 days.
Ultraviolet Disinfection Filters
Ultraviolet Disinfection Filters
Filter ModelLamp
[Replace every 12 months]
UVA-1CGL10SE4P
UVA-2CGL14SE4P
UVA-6CGL24SE4P
UVA-8CGL32SE4P
UVA-12CGL39SE4P
UVA-24BGL39SE4P
Filter ModelLamp
[Replace every 12 months]
UVA-36BGL39SE4P
UVA-50BGL39SE4P
UVA-60BGL39SE4P
UVA-80BGL39SE4P
UVA-100BGL39SE4P
  
Commercial Water Filters
Commercial Water Filters
MR-C Series
Filter Stage
Filter ModelStage 1 [20,000 gallons
or 6 months]
Stage 2 [20,000 gallons
or 6 months]
Stage 3 [20,000 gallons
or 6 months]
Stage 4 [24 months]
MR-C1000RF-1008RF-1004RF-10044021
MR-C1500RF-1008RF-1004RF-10044040
MR-C2000RF-1008RF-1004RF-10044021
MR-C3000RF-1008RF-1004RF-10044040
MR-C4000RF-1008RF-1004RF-10044040
MR-C6000RF-1008RF-1004RF-10044040
MR-C8000RF-1008RF-1004RF-10044040
MR-C10000RF-1008RF-1004RF-10044040
MR-C15000RF-1008RF-1004RF-10044040
MR-C20000RF-1008RF-1004RF-10044040
B1 Series
B1 Series
Filter Stage
Filter ModelStage 1 [20,000 gallons
or 6 months]
Stage 2 [20,000 gallons
or 6 months]
Stage 3 [24 months]
B1-1000RF-1008RF-10044021
B1-2000RF-1008RF-10044040
B1-4000RF-1008RF-10044040
B1-6000RF-1008RF-10044040
B1-8000RF-1008RF-10044040
B1-10000RF-1008RF-10044040
B1-15000RF-1008RF-10044040
B1-20000RF-1008RF-10044040
change filter cartridges
Neglecting to change filter cartridges can also cause your filtration system to fail and void the warranty. Protecting your health and investment in an APEX water purification system is of utmost importance. If you are uncertain about when to change your APEX filter cartridges or what kind you need, please contact one of our friendly water filtration experts. They will be happy to help you and answer your filter cartridge questions.