You want clean water for your home. Most people find string wound filters cost less, usually between $20 and $50, but need weekly backwashing. Pleated Filter Cartridge models cost more, from $80 to $200, but save energy because they lower pressure by up to 60%. You might prefer pleated filters if you want longer replacement cycles and less maintenance. Your water source and sediment size help you decide which works best.
Key Takeaways
Pick string wound filters if your water has a lot of dirt or sand. These filters do not cost much and work well for well water.
Choose pleated filters if you want them to last longer and need less work. These filters are best for city water and tiny particles.
Think about how fast water flows and how much dirt each filter can hold. Pleated filters let water move faster and can hold more dirt before you must change them.
Check your filters often and change them based on your water. Change string wound filters every 3 to 6 months. Pleated filters last 6 to 12 months before you need new ones.
Talk to a water treatment expert for advice just for you. They can help you pick the best filter for your water needs.
Which Filter Cartridge — String Wound or Pleated — Is Better for Your Water Needs?
For most residential water filtration needs, pleated filter cartridges generally outperform string wound cartridges due to their higher dirt-holding capacity and longer lifespan. This choice, however, depends on specific requirements like flow rate and contaminant type.
Picking the right filter cartridge depends on your water source. You also need to think about the sediment type and how much work you want to do. You can look at the main features of string wound and pleated filters in the table below:
Criteria | String Wound Filters | Pleated Filters |
|---|---|---|
Filtration Type | Depth Filtration | Surface Filtration |
Filtration Efficiency | Good for larger particles and sediment | High efficiency for finer contaminants |
Dirt-Holding Capacity | High, handles lots of debris | Moderate, best for finer filtration |
Flow Rate | Moderate, may slow water flow | Higher, keeps water moving easily |
Lifespan | Shorter, needs more frequent changes | Longer, lasts through more use |
Cost | Lower upfront cost | Higher upfront, but lasts longer |
Ideal Applications | General filtration, well water, high sediment | High-purity, city water, precise filtration |
Best For | Removing large particles at low cost | Accurate filtration and longer life |
When to Use String Wound
Use string wound filters if your water has lots of dirt or sand. These filters are good for well water and water with lots of sediment. The depth filtration design lets them trap different sizes of particles inside the filter. This helps remove:
Sediments
Dirt
Rust
Other debris
String wound filters work well when water has many contaminants. For example, private wells often have sand and rust. String wound filters catch these and help keep your water safe.
Tip: If your water looks cloudy or has bits in it, a string wound filter can help make it clear fast.
You might need to change string wound filters more often. If your water has lots of sediment, you will replace them a lot. They cost less at first, but you may spend more later if you change them often.
When to Use Pleated Filter Cartridge
A Pleated Filter Cartridge is best if you want high efficiency and longer filter life. The pleated design gives the filter more surface area. It can hold more dirt and lasts longer before you need a new one. This filter is great for:
City water with small, even particles
Times when you want less work
When you need to remove tiny particles, like 5 to 10 microns
Pleated Filter Cartridge models use surface filtration. They catch particles on the outside of the filter. This makes them very good at removing fine contaminants and keeping water clear. You also get a higher flow rate, so water pressure stays strong.
New pleated filters are even better than before. They now hold about 60% more contaminants and filter about 30% better than older ones. If you want a filter that lasts longer and gives cleaner water with less work, a Pleated Filter Cartridge is a smart pick.
Note: Pleated filters cost more at first, but you save money and time because you do not have to change them as much.
If you need a filter for high-purity jobs, like food or medicine, pleated filters are usually the best choice. They are also good if you want to avoid changing filters all the time.
How Do String Wound and Pleated Filter Cartridges Work?
Knowing how each filter works helps you pick the right one. Both string wound and pleated filter cartridges take out particles, but they do it in different ways.
Filter Type | |
|---|---|
String Wound | Catches particles inside the spaces between the wound fibers. |
Pleated | Uses a big surface to trap particles on the outside of the filter. |
String Wound Design
String wound filters are made by wrapping yarn or fiber around a tube. This makes many layers and spaces. Water moves through these layers, and the filter catches dirt and other particles inside.
The winding makes more surface area, so the filter can catch more stuff.
It traps both big and small particles for better cleaning.
Polypropylene or cotton are used because they fight chemicals and bacteria, so the filter lasts longer.
Tip: If your water has different particle sizes, a string wound filter can catch them all at once.
Pleated Filter Cartridge Structure
A Pleated Filter Cartridge is made with a folded sheet of filter material. These folds give the filter a much bigger surface than a flat sheet. When water goes through, the folds trap tiny particles on the outside.
Polypropylene, polyester, or cellulose are used to make these filters. Polypropylene is special because it fights chemicals and lasts a long time. The pleated shape lets the filter hold more dirt before you need a new one. Some brands, like BROMEN™, use even folds to make the filter work better and last longer.
This design gives you clear water and fewer filter changes. The big surface also keeps water moving fast, so you do not lose pressure.
How Do String Wound and Pleated Filters Compare in Performance?
String wound filters are typically better for capturing larger particles and handling high sediment loads, while pleated filters are more efficient at filtering fine particles and have a higher dirt-holding capacity.
Efficiency
You want a filter that takes out lots of unwanted stuff. Pleated Filter Cartridge models use tiny holes to catch particles very well. They work best for city water and fine contaminants. String wound filters work in another way. They have two layers. The outside layer grabs bigger particles. The inside layer catches smaller ones. This makes string wound filters good for many water types. Sometimes, string wound filters can trap even smaller particles than pleated filters. But you may need to clean or change them more often.
Flow Rate
Flow rate means how fast water goes through your filter. String wound filters have thick layers. This slows down the water. If your water has lots of dirt, it gets even slower. Pleated filters are different. Their design lets water move faster. Water does not get stuck as much. Some pleated filters can move up to 30 cubic meters per hour. String wound filters usually move less than 2 cubic meters per hour. If you want strong water pressure and quick flow, pleated filters are better.
String wound filters: Slower flow, water moves slowly.
Pleated filters: Faster flow, water moves quickly.
Dirt Capacity
Dirt capacity means how much dirt your filter can hold. String wound filters have thick spaces inside. They can collect lots of dirt. You can use them longer if your water has lots of sediment. Pleated filters also hold a lot of dirt because they have a big surface. Both types do well, but string wound filters often hold more dirt before getting clogged.
Filter Type | Dirt-Holding Capacity Description |
|---|---|
String Wound | Has great dirt-holding ability because it has thick spaces inside. It can collect lots of dirt before you need to change it. |
Pick your filter based on how dirty your water is and how often you want to change it.
What Types of Water Are Best Suited for Each Filter Cartridge?
Different types of water require specific filter cartridges to effectively remove impurities. For tap water, a carbon block filter is ideal due to its ability to remove chlorine, sediments, and odors. Well water benefits from a sediment filter to eliminate larger particles and a UV filter for microorganisms. Distilled water, being pure, doesn’t need additional filtering, while hard water requires a water softener to reduce mineral content.
Well Water
Well water can have many problems. It may have sand, dirt, rust, or bacteria. Sometimes, the water looks cloudy or leaves stains. Here is a table that shows common well water problems and ways to fix them:
Water Quality Issue | Description | Filtration Solution |
|---|---|---|
Turbidity | Tiny bits make water look cloudy. | Use a sand or cartridge filter |
Iron and Manganese | These cause stains and taste bad. | Use a chemical pump or filter system |
Bacterial Contamination | Bad bacteria might be in the water. | Use chlorine or other cleaning methods |
Harmful Chemicals | Chemicals can get into water from the ground. | Use special chemical filters |
Pick a string wound filter if your well water has lots of dirt or big particles. This filter grabs dirt deep inside and makes water clear. If you want to catch smaller bits, use a Pleated Filter Cartridge. It traps fine sediment and helps keep water safe to drink.
Tip: Test your well water every year. This helps you choose the right filter and keeps your water healthy.
City Water
City water gets cleaned before it comes to your house. Still, you might find tiny bits, chlorine, or strange tastes. Here is a table with common filters for city water:
Filter Cartridge Type | Function | Lifespan |
|---|---|---|
Sediment Filter | Takes out small bits, dust, and dirt. | 6-9 months |
Granular Activated Carbon | Removes chlorine and bad smells or tastes. | 2-6 months |
KDF Filter | Fights chlorine and stops bacteria growth. | Varies |
A Pleated Filter Cartridge works well for city water. It catches tiny bits and keeps water clear. If you want better taste or less chlorine, add a carbon filter after your sediment filter.
Note: City water often has chlorine. The right filter can make water taste better and protect your pipes.
High Sediment
Some homes have water with lots of dirt. This can block pipes and hurt appliances. If you see sand, dirt, or rust, you need a filter that holds lots of dirt. String wound filters are best for heavy sediment. They trap lots of dirt and last longer before you need a new one. If you want to catch both big and small bits, use a string wound filter first. Then use a Pleated Filter Cartridge for tiny particles.
Use string wound filters for lots of dirt.
Add a Pleated Filter Cartridge for extra help with small bits.
Remember: Check your filters often if you have lots of dirt. Clean or change them to keep water safe and flowing.
How Easy Is It to Maintain String Wound and Pleated Filters?
Maintaining string wound and pleated filters is relatively straightforward and requires regular monitoring and timely replacements. String wound filters need less frequent changes but require thorough cleaning, while pleated filters are easier to replace but need more frequent attention.
Replacement
You want a filter that is easy to replace. String wound filters usually need more frequent changes. If your water has a lot of dirt or sand, you may need to replace them every few months. Most people find that string wound filters last between six months and one year. If you see a drop in water pressure or notice the water looks cloudy, it is time to change the filter. You can do this yourself with basic tools. Just turn off the water, unscrew the filter housing, and swap in a new cartridge.
Pleated filter cartridges last longer. You might only need to replace them once or twice a year. Their design lets them hold more dirt before clogging. You will notice when it is time to change the filter because the water flow slows down or the filter looks dirty. Replacing a pleated filter is simple. You follow the same steps as with a string wound filter.
Tip: Always check your filter every few months. Regular checks help you avoid water problems and keep your system running well.
Cleaning
You can clean pleated filter cartridges to extend their life. This saves you money and keeps your water clear. Cleaning methods include both physical and chemical options:
Rinse the pleated filter with clean water to remove loose dirt.
Use oxidizer cleaning agents like 1%-3% hydrogen peroxide or 500-1000mg/L sodium hypochlorite to kill bacteria and remove grime.
Soak the filter in acid solutions such as hydrochloric acid or citric acid for 30 to 60 minutes. This helps remove mineral buildup and other inorganic impurities.
String wound filters need regular maintenance, too. You should clean them every two to three months, depending on how dirty your water is. If you use a string wound filter in a high-sediment area, you may need to replace it sooner. Cleaning helps, but after six months to a year, you should install a new one for best results.
🧽 Note: Clean filters work better and last longer. Set a reminder to check and clean your filters on a schedule that fits your water quality.
How Do the Costs of String Wound and Pleated Filters Compare?
String wound filters generally have lower upfront costs than pleated filters. However, pleated filters offer longer service life and higher efficiency, potentially reducing overall maintenance and replacement expenses.
Upfront
When you shop for water filter cartridges, you notice a big difference in price between string wound and pleated types. String wound filters usually cost less at first. Many basic models range from $20 to $50 each. Some special string wound filters, like a Polypropylene 30″ x 2.5″ String-Wound Filter Cartridge from Shelco, can cost as much as $180.00. These higher prices often come from special sizes or custom orders.
Pleated filter cartridges cost more upfront. You might pay between $80 and $200 for a standard pleated filter. The higher price comes from the advanced design and larger surface area. You pay more at first, but you get a filter that can last longer and handle more water before it needs changing.
Tip: Always check the size and type before you buy. Some filters cost more because they fit special systems or have extra features.
Here is a quick comparison:
Filter Type | Typical Upfront Cost |
|---|---|
String Wound | $20 – $50 (standard) |
String Wound | Up to $180 (special size) |
Pleated | $80 – $200 |
Long-Term
You need to think about more than just the first price. String wound filters often need replacing more often, especially if your water has lots of dirt or sand. If you change your filter every few months, the cost adds up over a year.
Pleated filter cartridges last longer. You might only need to replace them once or twice a year. Some pleated filters can be cleaned and reused, which saves you money over time. Even though you pay more at first, you spend less on replacements and maintenance.
String wound: Lower upfront cost, but more frequent changes.
Pleated: Higher upfront cost, but fewer replacements and less work.
📝 Note: If you want to save money in the long run, pleated filters often give you better value. You spend less time and money on maintenance.
Think about your water quality and how often you want to change filters. This helps you pick the best option for your budget and needs.
How Can You Choose the Right Filter Cartridge for Your Application?
To choose the right filter cartridge for your application, first identify the specific contaminants you need to remove and the required filtration efficiency. Next, consider factors such as flow rate, compatibility with your system, and maintenance requirements.
Application Match
Choosing the right filter cartridge for your water needs can feel confusing. You want to make sure your water is safe and your filter works well. Start by looking at your water quality and the type of sediment you have. Here are some practical tips to help you match the right filter to your needs:
Identify your main water quality issue. Is your water cloudy, rusty, or does it have a strange taste?
Check the size of the particles in your water. Large particles like sand need a different filter than tiny particles.
Choose the right micron rating. A lower micron number means the filter catches smaller particles. For example, a 5-micron filter removes finer dirt than a 20-micron filter.
Think about the flow rate you need. If you want strong water pressure, pick a filter that allows water to move quickly.
Look at the filter cartridge size. Bigger cartridges often last longer and handle more water.
Sediment cartridges come in many styles and micron sizes. Some remove dirt, sand, and rust. Others focus on tiny particles. Always match the filter style to your water problem.
💡 Tip: Never assume one filter fits all water types. Water quality can change by region and even by season.
Many people make mistakes when choosing a filter. Some pick the wrong type for their water. Others buy the cheapest filter and end up spending more on replacements. Some think all filters work the same, but each type has its own job. Avoid confusing water softeners with water purifiers. They solve different problems.
If you feel unsure, check for certifications. Trusted groups like NSF, IAPMO, and WQA test and certify water filters. Look for these marks on the packaging. You can also ask a water treatment professional for advice. They help you find the best filter for your home or business.
Certification | What It Means |
|---|---|
NSF | Meets drinking water safety standards |
IAPMO | Tested for plumbing and mechanical use |
WQA | Certified for water treatment quality |
Choosing the right filter keeps your water clean and your system running smoothly.
You have learned how string wound and pleated filter cartridges are different. String wound filters are good if your water has a lot of dirt. They also cost less to buy. Pleated filters work better for small particles and last longer. Pick your filter based on your water and how much work you want to do. If you are not sure, you can ask a certified water treatment expert for help. Here are some reasons to talk to a professional:
Benefit of Consulting a Professional | Description |
|---|---|
Personalized Advice | Get tips for your water problems. |
Assurance of Effectiveness | Find out which certified filters clean your water. |
Compatibility Assurance | Make sure the filter fits your needs. |
Look at your water system now and see if you need a new filter for cleaner water.
FAQ
How often should you replace your filter cartridge?
You should check your filter every few months. Replace string wound filters every 3–6 months. Pleated filters can last 6–12 months. Change your filter sooner if you notice slow water flow or cloudy water.
Can you clean and reuse both types of filters?
You can rinse and reuse pleated filter cartridges a few times. String wound filters do not clean well. Replace them when they look dirty or clogged.
Which filter works best for removing rust from water?
String wound filters trap large rust particles well. Pleated filters catch smaller rust bits. For heavy rust, use a string wound filter first, then a pleated filter for extra cleaning.
Do these filters remove bacteria or chemicals?
These filters remove dirt, sand, and rust. They do not remove bacteria or chemicals. For bacteria or chemical removal, add a carbon filter or UV purifier to your system.
What micron rating should you choose for your home?
Pick a 5-micron filter for most homes. This size removes common dirt and sediment. For very fine particles, choose a 1-micron filter. Always match the micron rating to your water quality needs.
