BasideWT- Whole Home Water Filtration System & Replacement

20 inch Water Filter Cartridges | BasideWT
PRODUCT PARAMETERS
- 20-inch water filter cartridges are the universal solution for whole-house or point-of-entry water filtration. Designed to fit most standard 20-inch sump housings, these cartridges effectively reduce sediment, rust, dirt, and chlorine taste and odor from your water supply.
- Choose from a variety of filter media to target your specific water concerns:
- Pleated Sediment Filters: For superior dirt and rust removal.
- Carbon Block CTO Filters: To reduce chlorine, taste, odor, and fine particles.
- GAC Filters: For maximum chemical adsorption and clearer water.
- Resin filter: removes calcium and magnesium ions, softens water quality
- Ceramic filter: filter out bacteria and microorganisms
Product Overview / Description
The BasideWT 20 inch Water Filter Cartridges are high-capacity filtration components engineered for RO systems, softening systems, and whole-house filtration setups. They effectively remove sediments, chlorine, and organic compounds, providing clear and safe water for drinking and industrial processes.
These cartridges feature multi-layer polypropylene construction, ensuring both structural integrity and high dirt-holding capacity. Whether used in a commercial water treatment plant or a home reverse osmosis system, they maintain consistent flow rates and filtration efficiency.
Key Features and Benefits
- High Filtration Efficiency: Each 20 inch filter cartridge traps fine particles, rust, and sediments, ensuring superior water clarity.
- Durable Construction: Made from FDA-grade polypropylene for strength, chemical resistance, and safety.
- Universal Fit: Compatible with most standard 20-inch filter housings for easy installation and replacement.
- Extended Lifespan: Long-lasting performance reduces replacement frequency, saving maintenance costs.
- Multi-Stage Compatibility: Ideal for pre-filtration in RO systems, carbon filters, and softener setups.
- Stable Pressure Resistance: Designed to handle continuous flow without collapsing or clogging.
Interestingly, although many filters claim high efficiency, BasideWT’s 20 inch Water Filter Cartridges maintain stable performance even under variable water pressure—something cheaper models often fail to achieve.
Understanding the Function of 20 Inch Water Filter Cartridges
What Does a Filter Cartridge Actually Do?
A filter cartridge is the core of any purification system. It removes impurities such as sediment, rust, chlorine, organic matter, and microorganisms. The 20 inch water filter cartridges provide a larger filtration surface and higher flow rate than shorter cartridges.
Each layer of the cartridge performs a specific task. The outer layer traps large particles, while the inner core removes finer contaminants. The result? Clearer, better-tasting, and safer water.
Different Types of 20 Inch Water Filter Cartridges
PP Sediment Filter Cartridges
PP (Polypropylene) melt-blown filters are among the most common and cost-effective options. They remove sediment, dirt, sand, and rust particles. BasideWT’s PP cartridges use a multi-layer gradient density structure, capturing particles of different sizes throughout the depth of the filter.
For example, the outer layer traps larger debris (20 microns), while the inner core filters finer particles (1–5 microns). This design ensures longer service life and stable water pressure.
Carbon Block and GAC Cartridges
When the concern is taste, odor, or chlorine removal, carbon block or granular activated carbon (GAC) filters excel. The porous structure of activated carbon adsorbs chemical residues, VOCs, and unpleasant smells.
BasideWT carbon filters use high-quality coconut shell carbon, known for its excellent adsorption performance. Interestingly, coconut carbon has a 20% higher surface area than coal-based carbon, enhancing purification efficiency.
Pleated Filter Cartridges
Pleated filters increase surface area dramatically, allowing for high flow and lower pressure drop. They are washable and reusable, making them environmentally friendly and cost-efficient.
They are commonly used in applications where water has visible particulate matter but minimal chemical contamination.
Resin and Ceramic Cartridges
For specialized needs, resin filters remove hardness (calcium, magnesium) while ceramic filters eliminate bacteria and cysts. BasideWT offers a full line of customized 20 inch water filter cartridges compatible with these applications.

PP Sediment Filter Cartridges

Carbon Block and GAC Cartridges
Core Features of BasideWT 20 Inch Water Filter Cartridges
Multi-Layer Precision Filtration
Our cartridges combine multiple filtration stages in one unit—coarse-to-fine sediment trapping, chemical adsorption, and microbial reduction. This structure maximizes efficiency without compromising flow rate.
High Flow and Long Life
Each BasideWT 20-inch cartridge provides a high dirt-holding capacity, reducing the need for frequent replacement. With proper pre-filtration and maintenance, service life can exceed 6–12 months depending on usage.
Universal Compatibility
BasideWT designs filters that fit standard 20-inch housings, such as 20” Slim and 20” Big Blue types. Whether you own a household under-sink unit or a commercial purification system, our cartridges integrate seamlessly.
Certified Safety
All BasideWT cartridges are made from FDA-approved and NSF-certified materials. They contain no binders, solvents, or additives that could leach into your water. Safety and purity remain our top priorities.
Technical Specifications
| Parameter | Standard 20″ Cartridge | Big Blue 20″ Cartridge |
|---|
| Length | 20 inches (508 mm) | 20 inches (508 mm) |
| Outer Diameter | 2.5 inches | 4.5 inches |
| Micron Rating | 0.5–100 μm | 0.5–100 μm |
| Flow Rate | Up to 8 GPM | Up to 20 GPM |
| Max Temperature | 60°C (140°F) | 60°C (140°F) |
| Material Options | PP, Carbon, Pleated, Resin, Ceramic | PP, Carbon, Pleated |
| Certification | NSF, ISO 9001 | NSF, ISO 9001 |

Applications of 20 Inch Water Filter Cartridges
Residential Filtration
For households with high water usage, a 20-inch cartridge ensures constant supply without frequent replacement. It’s ideal for whole-house filtration, removing sediment before water reaches faucets or appliances.
Commercial Use
Restaurants, cafés, and hotels require stable, high-volume filtration. Our 20 inch water filter cartridges protect coffee machines, dishwashers, and ice makers from scale and sediment buildup.
Industrial Systems
In industrial environments, filters handle heavy loads of particulates and chemicals. BasideWT cartridges are used in cooling systems, boiler feed water, and manufacturing lines, where water purity directly affects product quality.
Pre-RO Filtration
These cartridges are often used as pre-filters for reverse osmosis systems. By removing large impurities, they extend the life of RO membranes and improve overall system efficiency.
How to Choose the Right 20 Inch Water Filter Cartridge
Identify Water Quality
Determine the contaminants present. Is the problem sediment, chlorine, or hardness? Each issue requires a different cartridge type. For instance:
- Sediment → PP melt-blown
- Chlorine/odor → Carbon block
- Hardness → Resin-based
Match Flow Rate and Pressure
Ensure your filter housing and water system can maintain sufficient flow. Using a high-density filter in a low-pressure system can cause flow drop or filter stress.
Check Material Compatibility
Always verify that the cartridge material suits your application—especially for food, beverage, or laboratory use. BasideWT provides clear labeling and documentation for all materials.
Installation and Maintenance Tips
Installation Steps
- Turn off the water supply and release system pressure.
- Unscrew the filter housing using a wrench.
- Remove the old cartridge and clean the housing.
- Insert the new 20-inch filter cartridge, aligning it properly.
- Reattach the housing, ensuring the O-ring is seated correctly.
- Open the water supply slowly and check for leaks.
Maintenance Routine
- Replace cartridges every 6–12 months, or sooner if flow decreases.
- Clean housings regularly to prevent bacterial buildup.
- Store spare filters in a dry, cool place.
Interestingly, even the best cartridges lose efficiency over time, not due to damage but microscopic saturation of filter pores. Hence, routine replacement is essential.
Troubleshooting Common Issues
Low Water Flow
Low flow often means the cartridge is clogged. Replacing it typically resolves the issue. However, check upstream for sediment accumulation that could accelerate blockage.
Bad Taste or Odor
If filtered water tastes unusual, the carbon cartridge may be exhausted. Flush the system thoroughly after replacement to activate the new media.
Air in the System
Air bubbles after installation are normal. Run the water for several minutes to purge trapped air.
However, if bubbles persist, check all O-rings and connections for small leaks.
Comparison with Other Cartridge Sizes
| Feature | 10-Inch Filter | 20-Inch Filter |
|---|---|---|
| Lifespan | 3–6 months | 6–12 months |
| Flow Rate | 4 GPM | 8–20 GPM |
| Maintenance | Frequent | Less frequent |
| Ideal Use | Small homes | Large homes or commercial |
| Cost per Month | Higher | Lower |
Therefore, upgrading to 20 inch water filter cartridges offers both economic and operational advantages.
Frequently Asked Questions (FAQ)
Q1: What is the lifespan of a 20 inch water filter cartridge?
A: Typically 3–6 months, depending on water quality and flow rate. Heavy sediment may reduce lifespan.
Q2: Can these cartridges be used for seawater filtration?
A: They are not recommended for direct seawater use; pre-treatment is needed for salt removal.
Q3: How to know when the cartridge needs replacement?
A: A noticeable drop in flow or pressure indicates it’s time to replace the filter.
Q4: Are BasideWT cartridges compatible with all housings?
A: Yes, they fit most standard 20-inch housings with 2.5” or 4.5” diameters.
FAQs
Choosing the perfect water treatment system depends on your specific water quality, household size, and needs. We make it easy with our 3-step process:
Water quality testing – analyze your water for contaminants, hardness, and other factors.
Personalized Consultation – Our experts recommend systems based on your results, budget, and water usage.
Customized Solution – From whole-house filtration to targeted solutions (e.g., RO for drinking water, softeners for hard water), we tailor the system to your home.
To determine your water flow rate in gallons per minute (GPM), follow these simple steps:
Prepare for Testing:
- Prepare for Testing:
- Ensure all water fixtures in your home are turned off
- Select the faucet closest to your main water supply line (usually the kitchen sink or an outdoor spigot)
- Conduct the Test:
- Fully open the selected faucet
- Time how many seconds it takes to fill a 1-gallon container
- Repeat the test 2-3 times for accuracy
- Calculate Your Flow Rate:
Use this formula: Flow Rate (GPM) = 60 ÷ Fill Time (seconds)Example Calculation:- If your 1-gallon container fills in 15 seconds
- 60 ÷ 15 = 4 GPM
For more precise measurements or whole-home flow rate analysis, contact our water system specialists. We can help you determine if your current flow rate meets the requirements for any water treatment systems you’re considering.

1. Check Multiple Fixtures
Test water pressure at different faucets, showers, and appliances (e.g., kitchen sink, bathroom sink, outdoor hose).
If only one fixture has low pressure, the problem is likely localized (clogged aerator, faulty valve, or pipe issue).
If all fixtures have low pressure, the issue is systemic (main supply, pressure regulator, or water heater).
2. Inspect the Aerator or Showerhead
Unscrew the faucet aerator or showerhead and check for mineral deposits, debris, or rust.
Soak it in vinegar overnight to dissolve buildup, then rinse and reattach.
3. Check the Main Shutoff Valve
Locate the main water shutoff valve (usually near the water meter or where the main line enters the house).
Ensure it’s fully open (turn clockwise to close, counterclockwise to open).
1. Activated Carbon Filters
- Removes:
✅ Chlorine & chloramines
✅ Bad tastes & odors (e.g., sulfur)
✅ Volatile Organic Compounds (VOCs)
✅ Some pesticides & herbicides
❌ Does not remove heavy metals, dissolved minerals, or microbes
2. Reverse Osmosis (RO) Systems
- Removes:
✅ Heavy metals (lead, arsenic, mercury, cadmium)
✅ Dissolved salts (fluoride, nitrates, sulfates)
✅ Microplastics & sediment
✅ Bacteria & viruses (if combined with UV)
✅ Chlorine & chemicals (with carbon pre-filter)
❌ May remove beneficial minerals (can be remineralized)
3. Water Softeners (Ion Exchange)
- Targets:
✅ Calcium & magnesium (hardness)
✅ Low levels of iron & manganese
❌ Does not remove bacteria, chlorine, or heavy metals
4. UV Purifiers
- Kills:
✅ Bacteria (E. coli, coliform)
✅ Viruses (rotavirus, hepatitis)
✅ Protozoa (Giardia, Cryptosporidium)
❌ Does not remove chemicals, metals, or sediment
5. Sediment Filters
- Removes:
✅ Sand, rust, dirt
✅ Large particles & silt
❌ Does not remove dissolved contaminants
6. Whole-House Filtration Systems
Combines multiple methods (carbon + sediment + UV) for broad protection.
- UV: Kills bacteria/viruses but doesn’t remove chemicals or particles.
- RO (Reverse Osmosis): Removes 95–99% of contaminants (heavy metals, dissolved salts) but requires electricity.
- Activated Carbon: Absorbs chlorine, odors, and organic compounds—ideal for pre-filtration.
REQUEST A QUOTE
RELATED PRODUCTS

10” 20” 30” 40” PP Pleated Water Filter Cartridge 20 Micron 0.2 Micron 0.5 Micron Cartridge Filter For Ro Plant

5 Micron 10″x2.5″ Grooved Water Sediment PP Filter Cartridge for Whole House water fliter Replacement

BasideWT 5 Micron 10″x2.5″ Multi-Layer PP Universal Sediment Water Filter Cartridge

BasideWT Factory Price 20 in. x 2.5 in. Water Filter Replacement Cartridges Whole House Pre Filter

5 Micron 20” Whole House String Wound Water Filter Replacement Cartridge for Well Water Filtration













