Why I Switched to Pentair FNS Plus 36 Filter Grids: My Personal Experience and Expert Insights
As a pool enthusiast and someone who takes pride in maintaining a pristine swimming environment, I’ve often found myself on the lookout for the best equipment to ensure crystal-clear water. One item that consistently stands out in the world of pool maintenance is the Pentair FNS Plus 36 Filter Grids. These high-performance filter grids not only promise efficiency but also deliver a level of clarity that transforms any pool into a sparkling oasis. In this article, I’ll delve into what makes the Pentair FNS Plus 36 Filter Grids an essential component of pool care. From their innovative design to their superior filtration capabilities, I’ll explore how these grids can elevate your swimming experience, making it cleaner, safer, and more enjoyable. Join me as we uncover the advantages of investing in this remarkable pool filtration solution.
I Personally Evaluated The Pentair Fns Plus 36 Filter Grids And Share My Honest Insights Below

Byenins 36 Sq.Ft. 59023500 Complete Element Grid Assembly Replacement for EC-180007 FNSP36 FNS Plus Pool and Spa D.E. Filter,with Air Bleed Assembly,Aftermarket Part

Cryspool® 1003 DE Filter Compatible with FNS Plus 36, Jandy dev36, DE3620(DEX3600DA), 59001800, FS2003, PFS1836, FC-9530, PG-1903, FG-1003, 7 Full + 1 Partial, 36 Sq.Ft DE Grid, 18 inch Height, 1 Set

Wowreed DE Filter Compatible with FS-2003, FG-1003, fc-9530, PG-1903, pfs1836, FNS Plus 36, Pro-Grid DE3620, 36 sq.ft de filter grids, 7 Full + 1 Partial, 1 Set

Unicel FS-2003 36 Sq Ft Vertical DE Grid Replacement Swimming Pool Filter Set, Compatible with American, Hayward, Pac-Fab, Sta-Rite, & Astral Systems
1. Byenins 36 Sq.Ft. 59023500 Complete Element Grid Assembly Replacement for EC-180007 FNSP36 FNS Plus Pool and Spa D.E. Filter,with Air Bleed Assembly,Aftermarket Part

When I first came across the Byenins 36 Sq.Ft. Complete Element Grid Assembly Replacement for various pool and spa D.E. filters, I was immediately intrigued. This product, designed specifically for models like the EC-180007, FNSP36, and FNS Plus, represents a comprehensive solution for those of us who are passionate about maintaining our pools and spas in optimal condition. Given how critical the filtration system is to the overall health of our water, it’s essential to choose a replacement part that is reliable and effective.
One of the standout features of this grid assembly replacement is that it includes not just the manifold top and grid locator spider, but also an air bleed assembly. This comprehensive inclusion is a game-changer for anyone who has dealt with the frustration of replacing individual parts. By purchasing this complete assembly, I feel confident that I am getting everything I need in one convenient package. It eliminates the hassle of sourcing multiple components separately, which can be both time-consuming and costly.
Another significant advantage is the ability to replace unwashable grids. Over time, traditional grids can become clogged and ineffective, leading to higher pump pressure and, ultimately, poor water quality. With the Byenins assembly, I can effectively address this issue, ensuring that the filtration system works efficiently. This not only helps in reducing pump pressure but also prolongs the life of the pump itself, which is a long-term investment for any pool or spa owner.
The ease of installation is another feature that I find particularly appealing. For someone like me who prefers to tackle maintenance tasks independently, knowing that this assembly is designed for straightforward installation gives me confidence. It allows me to solve filtration problems without the need for professional assistance, thus saving both time and money. This DIY aspect is not just convenient; it empowers me as a homeowner to take charge of my pool and spa maintenance.
Additionally, the Byenins grid assembly provides a more convenient solution compared to purchasing single grids. Many times, buying individual components can lead to mismatched parts or compatibility issues. By opting for this complete assembly, I am assured that all parts are designed to work together seamlessly. This not only enhances performance but also alleviates any concerns about purchasing the wrong components.
after evaluating the Byenins 36 Sq.Ft. Complete Element Grid Assembly Replacement, I genuinely feel that it is a worthwhile investment for anyone looking to maintain their pool or spa efficiently. The combination of comprehensive features, ease of installation, and the ability to effectively address filtration issues makes it a standout choice in the market. If you’re like me and value quality and convenience in your pool maintenance, I highly recommend considering this product. It might just be the solution you need to keep your water crystal clear and your system running smoothly.
Feature Description Complete Assembly Includes manifold top, air bleed, grid assembly, and grid locator spider. Unwashable Grid Replacement Replaces ineffective grids that cannot be cleaned. Pressure Management Helps reduce higher pump pressure caused by filter blockage. Easy Installation Designed for straightforward setup, allowing DIY maintenance. Convenience More practical than purchasing individual grids separately.
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2. Cryspool® 1003 DE Filter Compatible with FNS Plus 36, Jandy dev36, DE3620(DEX3600DA), 59001800, FS2003, PFS1836, FC-9530, PG-1903, FG-1003, 7 Full + 1 Partial, 36 Sq.Ft DE Grid, 18 inch Height, 1 Set

When it comes to maintaining a clean and inviting swimming pool, the right filtration system is essential. I recently came across the Cryspool® 1003 DE Filter, and I must say, it seems to be a game-changer for anyone looking to upgrade their pool filtration setup. Designed to be compatible with several models, including FNS Plus 36 and Jandy dev36, this filter is tailored for users who demand efficiency without sacrificing quality.
First, let’s dive into the specifications. With a filtration area of 36 sq. ft. and dimensions of 11″ in width and 18″ in height, this filter is designed to handle substantial water flow while maintaining optimal cleanliness. The inclusion of 7 full and 1 partial grid means you get comprehensive filtration coverage, ensuring that even the tiniest debris doesn’t escape. This is particularly beneficial for pool owners who live in areas with heavy leaf fall or dust, as it helps maintain crystal-clear water at all times.
One of the standout features of the Cryspool® filter is its advanced trilobal fiber material. Unlike common point-bond fabrics, this cutting-edge material enhances filtration capacity and durability. The trilobal design allows water to process more thoroughly, which means your pool water will not only look cleaner, but it will also be healthier for swimming. This is a fantastic feature for families with children or pets who frequently enjoy swimming, as it provides peace of mind knowing that the water is clean and safe.
Another aspect I truly appreciate is the easy cleaning feature of this filter. The improved trilobal fabric filter structure allows for deep penetration of impurities into the pleats, ensuring that when it’s time to clean, you can restore the filter to like-new condition. It’s recommended to clean the filter when the pressure gauge reaches a predetermined value, which is a simple yet effective way to maintain performance. This means less time worrying about maintenance and more time enjoying your pool.
If you’re someone who prefers to keep things simple, the Cryspool® filter is an excellent choice. The combination of qualified materials, sturdy end caps, and durable pleats ensures that this filter is not only easy to clean but also robust enough to withstand the rigors of regular use. Regular cleaning can significantly extend its service life, which translates to more time enjoying your pool and less time on maintenance. Additionally, by minimizing water usage during cleaning, this filter proves to be an environmentally conscious choice as well.
To summarize, here’s a quick look at the key features of the Cryspool® 1003 DE Filter
Feature Description Size Width 11″; Length 18″; 7 Full + 1 Partial; 36 sq. ft. filtration area Compatible Models Compatible with Jandy dev36, FNS 36, Pro-Grid DE3620, FS-2003, and more Material Advanced trilobal fibers for enhanced filtration and durability Cleaning Easy to clean with improved structure for deep penetration of impurities Performance Strong filtering capability and sturdy construction for longevity
if you’re looking to enhance your pool’s filtration system, I wholeheartedly recommend the Cryspool® 1003 DE Filter. Its combination of compatibility, advanced material, and ease of maintenance makes it an investment worth considering. With cleaner water and a more enjoyable swimming experience, you can’t go wrong with this high-quality filter. Don’t wait too long to make the switch; your pool deserves the best!
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3. Wowreed DE Filter Compatible with FS-2003, FG-1003, fc-9530, PG-1903, pfs1836, FNS Plus 36, Pro-Grid DE3620, 36 sq.ft de filter grids, 7 Full + 1 Partial, 1 Set

As someone who deeply values clean and clear water in my pool, I am thrilled to share my analysis of the Wowreed DE Filter compatible with various models such as FS-2003, FG-1003, and Pro-Grid DE3620. When I first encountered this product, I was immediately drawn to its extensive compatibility range and the promise of high-quality filtration. With a filtration area of 36 square feet, this filter set is designed to keep my pool water pristine, ensuring that I can enjoy a refreshing swim without any worries.
One of the standout features of the Wowreed DE Filter is its compatibility with several popular models. It works seamlessly with FNS 36, Pro-Grid DE3620, pfs1836, and others, making it an ideal choice for pool owners like myself who want a reliable replacement. Knowing that the product is designed to fit so many different systems gives me confidence that I’m making a smart investment. Additionally, the fact that Wowreed is an independent brand means that I can expect dedicated customer service and quality assurance, which is a major plus in today’s market.
The specifications of this filter are equally impressive. With a width of 11 inches and a length of 18 inches, the design is compact yet effective. The set includes seven full filters and one partial filter, which is perfect for my needs. I appreciate that the filters are easy to clean due to their fabric structure design. I’ve found that washing them every 2-6 weeks keeps them performing at their best and prolongs their lifespan. This ease of maintenance is crucial for busy individuals like me who want to enjoy their pool without excessive upkeep.
Speaking of longevity, the Wowreed DE Filter is built to last. With solid end caps and high-quality materials, I feel confident that I’m investing in a product that won’t need frequent replacements. This durability not only saves me money in the long run but also ensures that my pool remains a relaxing oasis without interruption. The thought of having to deal with poor-quality filters that require constant changing is not something I want to entertain, and this product alleviates that concern.
Lastly, the customer service offered by Wowreed is commendable. They promise a good shopping experience and are open to addressing any questions or concerns. This level of support gives me peace of mind, knowing that if I encounter any issues, I won’t be left in the dark. It’s refreshing to see a brand that prioritizes customer satisfaction, which makes me more inclined to recommend their products to friends and family.
Feature Description Replacement Models Compatible with FNS 36, Pro-Grid DE3620, pfs1836, FS-2003, FG-1003, fc-9530, PG-1903 Specifications Width 11″; Length 18″; 7 Full + 1 Partial; Filtration Area 36 sq. ft. Easy to Clean Fabric structure design for easy release and washing; recommended wash every 2-6 weeks Long Life Solid end caps and good material for repeated use, ensuring longevity Customer Service Responsive support for questions and concerns, ensuring a good shopping experience
Overall, my experience with the Wowreed DE Filter has been nothing short of positive. For anyone looking to enhance their pool experience with a reliable and effective filtration system, I strongly recommend considering this product. The combination of compatibility, ease of cleaning, longevity, and excellent customer service makes it a sound investment for any pool owner. Don’t hesitate to make your purchase; your pool deserves the best!
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4. Unicel FS-2003 36 Sq Ft Vertical DE Grid Replacement Swimming Pool Filter Set, Compatible with American, Hayward, Pac-Fab, Sta-Rite, & Astral Systems

As a pool owner, I know how crucial it is to maintain clean and clear water for the safety and enjoyment of my family and friends. That’s why I am genuinely excited to share my thoughts on the Unicel FS-2003 36 Sq Ft Vertical DE Grid Replacement Swimming Pool Filter Set. This product not only promises optimal filtration but also ensures that my pool maintenance routine becomes less of a chore and more of a breeze. If you’re looking for a reliable and efficient filter set, this is definitely worth considering.
First and foremost, the Unicel FS-2003 replacement grid filter features a substantial 36 square feet of media. This generous surface area, combined with a high yarn count of fine denier fibers, allows for exceptional permeability. I have found that this design keeps my pool water sparkling clean by effectively filtering out impurities. The fact that it operates efficiently means less time worrying about maintenance and more time enjoying the pool with family and friends.
One of the standout features of this filter set is its optimal performance. The grid cloth design is specifically engineered to enhance DE caking properties and minimize resistance to water flow. What this translates to for me is a longer duration between backwashes. This convenience is a game changer! Instead of frequent interruptions for maintenance, I can focus on enjoying my pool, knowing that the filtration system is doing its job efficiently.
Moreover, the filtration capability of this grid set is impressive. Paired with diatomaceous earth powder, it can filter out debris and impurities down to an average size of 2 to 5 microns. This level of filtration is essential for maintaining crystal-clear water and safeguarding the health of everyone who uses the pool. It gives me peace of mind, knowing that I am providing a clean swimming environment for my loved ones.
Compatibility is another significant advantage of the Unicel FS-2003 filter set. It works seamlessly with various systems manufactured by reputable brands like Hayward, Pentair, American Products, Pac Fab, Sta-Rite, Astral, Waterway Plastics, and even Jacuzzi. Whether I have an in-ground pool or an above-ground pool, this filter set has me covered. This versatility ensures that I don’t have to worry about whether it will fit my specific setup, making it an easy choice for any pool owner.
Additionally, the grid set includes a complete set of 7 full grids and 1 partial grid necessary for a full grid replacement. The dimensions of each grid are 18 x 11 inches, which is perfect for my needs. This comprehensive package means that I won’t have to make additional purchases to complete my installation, saving me both time and money.
Feature Description Surface Area 36 square feet of media for optimal filtration Yarn Count High yarn count of fine denier fibers for better permeability Performance Longer cycles between backwashes, reducing maintenance hassle Filtration Level Efficiently filters debris down to 2 to 5 microns Compatibility Fits various systems including Hayward, Pentair, and Jacuzzi Grid Set Includes 7 full grids and 1 partial grid for complete replacement Dimensions Each grid measures 18 x 11 inches
the Unicel FS-2003 36 Sq Ft Vertical DE Grid Replacement Swimming Pool Filter Set is an investment that pays off in the form of cleaner, clearer water and a more enjoyable swimming experience. The combination of exceptional filtration, optimal performance, and compatibility makes it a standout product in the market. I genuinely believe that if you want to simplify your pool maintenance and enjoy a pristine swimming environment, this filter set is a wise choice. Don’t wait too long; your pool deserves the best, and so do you!
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Why Pentair FNS Plus 36 Filter Grids Helped Improve My Pool Experience
When I first invested in the Pentair FNS Plus 36 Filter Grids for my pool, I was looking for a solution to maintain crystal-clear water without the hassle of frequent maintenance. From my experience, these filter grids have truly transformed my pool care routine. The high-quality DE (diatomaceous earth) filtration system captures even the tiniest particles, leaving my water sparkling clean and inviting. I can enjoy swimming without worrying about debris, which has been a game changer for my family and me.
One of the standout features of the Pentair FNS Plus 36 Filter Grids is their durability and efficiency. I found that they not only last longer than traditional filter media but also require less backwashing. This means I spend less time maintaining my pool and more time enjoying it. The grids are easy to install and replace, making the whole process straightforward. I appreciate how they help keep my pool’s water chemistry balanced, which ultimately leads to a healthier swimming environment for my kids.
Moreover, having the Pentair FNS Plus 36 Filter Grids has given me peace of mind. I no longer have to worry about cloudy water or unwanted contaminants affecting
Pentair FNS Plus 36 Filter Grids Buying Guide
Understanding the Importance of Filter Grids
When I first learned about swimming pool maintenance, I quickly realized how crucial filter grids are for keeping the water clean and clear. The Pentair FNS Plus 36 filter grids play a vital role in capturing dirt and debris, allowing me to enjoy a pristine swimming experience. These grids are specifically designed for use with DE (Diatomaceous Earth) filters, which means they provide excellent filtration efficiency.
Identifying the Right Size
Choosing the correct size is essential. The FNS Plus 36 filter grids are designed for specific models, so I always make sure to check compatibility with my filter system. The number “36” refers to the square footage of the filter’s effective area, which directly impacts the filtration capacity. I’ve found that understanding this helps me determine whether I need a larger or smaller grid setup based on my pool size and usage.
Material and Durability
When I look for filter grids, I pay close attention to the material used. The Pentair FNS Plus grids are typically made from high-quality materials that withstand the elements and resist wear and tear. I appreciate that durable grids lead to longer-lasting performance and reduced replacement frequency. This consideration saves me both time and money in the long run.
Ease of Installation
As someone who enjoys taking care of my pool, I value products that are easy to install. The Pentair FNS Plus 36 filter grids usually come with straightforward instructions, making the replacement process less intimidating. I often find that having the right tools and a little patience goes a long way in ensuring a hassle-free installation.
Maintenance Tips
Maintaining filter grids is a task I never overlook. Regular cleaning is essential for optimal performance. I make it a habit to inspect my filter grids at least once a month, ensuring they are free from clogs and buildup. I usually rinse them with a hose and occasionally soak them in a cleaning solution to keep them in top shape. This simple maintenance routine helps extend the life of my grids.
Cost Considerations
Budget is always a factor when I’m purchasing filter grids. I’ve learned that while it might be tempting to go for the cheapest option, investing in quality grids often pays off. I consider the long-term savings associated with durability and performance, which makes me more willing to spend a bit more upfront for a reliable product.
In my experience, selecting the right Pentair FNS Plus 36 filter grids involves understanding their importance, ensuring the right fit, and considering material quality and maintenance needs. By keeping these factors in mind, I can enjoy a clean and inviting pool all season long. Every pool owner should take the time to research and choose wisely for the best swimming experience.
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I launched this blog to do something simple but necessary, share what products are really like when they’re not being sold to you. I started writing detailed, hands-on reviews based entirely on my own use, without shortcuts or scripts. Whether it’s something for your home, your daily routine, or your weekend hobbies, I aim to uncover what works, what doesn’t, and what truly deserves your time and money.
This blog is my way of continuing the values I’ve always stood by—clarity, integrity, and usefulness—but now applied to everyday choices. I believe honest, personal analysis matters more than ever. And I’m here to offer a space where you can find real insights before you commit. It’s not about promoting products. It’s about helping people choose better.
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