--- product_id: 273924480 title: "Bag Filter, 155384, BP-420-1 Polypropylene 1 Micron, 4.5\" x 20\"" brand: "pentek" price: "9075 som" currency: KGS in_stock: true reviews_count: 5 category: "Pentek" url: https://www.desertcart.kg/products/273924480-bag-filter-155384-bp-420-1-polypropylene-1-micron-4 store_origin: KG region: Kyrgyzstan --- # high temperature resistance compatible with acidic & alkaline fluids 1 micron ultrafiltration Bag Filter, 155384, BP-420-1 Polypropylene 1 Micron, 4.5" x 20" **Brand:** pentek **Price:** 9075 som **Availability:** ✅ In Stock ## Summary > 💧 Elevate your filtration game—because clean water waits for no one! ## Quick Answers - **What is this?** Bag Filter, 155384, BP-420-1 Polypropylene 1 Micron, 4.5" x 20" by pentek - **How much does it cost?** 9075 som with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/273924480-bag-filter-155384-bp-420-1-polypropylene-1-micron-4) ## Best For - pentek enthusiasts ## Why This Product - Trusted pentek brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Heavy-Duty Felt Media:** Maximizes dirt-holding capacity for longer filter life - • **Quick & Easy Change-Outs:** Boosts productivity with faster filter replacements - • **Chemical-Resistant Design:** Works seamlessly with corrosive and harsh fluids - • **Heat-Tolerant Construction:** Maintains performance even under high temperatures - • **Ultra-Fine 1 Micron Filtration:** Captures the tiniest particles for crystal-clear water ## Overview The Pentek BP-420-1 Bag Filter is a durable polypropylene filter cartridge engineered for ultra-fine 1 micron filtration. Its felt media construction offers superior dirt-holding capacity, while its chemical and heat resistance ensure compatibility with a wide range of fluids and demanding conditions. Designed for quick change-outs, it’s ideal for maintaining pristine water quality in pools and filtration systems. ## Description The Pentek BP-420-1 Filter Bag provides higher productivity with faster bag "change-outs." The bags are manufactured from felt because it can take on a heavy load of solids, in comparison to similar mesh fabrics. The manufacturing process involves multiple steps: layering together the felt material on a screen for support, then finishing it with a glaze for a secure bond. This is a product that can certainly hold its own as it filters dirt and debris. Review: Worked great to remove dead mustard algae / pollen / dust (not sure what I was dealing with) from above ground pool that cartridge filter was missing. Zip tied it onto a return hose and ran the pump for a few hours. Pool is finally back to normal :). Review: Had problems with pollen/silt in the bottom of my pool this year. Cartridge filter not able to filter out the smaller microns and I assumed it was blowing it all back into the pool. Attached DANMAR Directional Pool Skimmer Jet Return Nozzle and then cut off the end of this filter to attach to it. Had to rig it to hold with couple of zip ties (cut holes to thread zip tie for tight fit) and clamped the open part- It WORKED!!! I was worried it would build up too much pressure on my pump but didn't raise it much. By the time I finished vacuuming I could see that it was blowing the dirt directly back into my pool like i thought. This filter caught what was blowing back into pool. After vacuuming I disconnected the vacuum and let it run for an hour to catch anything I stirred up then removed it and put regular return eyeball back on. Checked an hour later and the pool was clean- nothing settled back to the bottom. Wish I had discovered this at the beginning of the season, but ready for next year! Well worth the money and will buy more! Very pleased!! ## Features - 1 micron ultrafiltration - Compatible with a wide range of acidic and alkaline fluids, and other corrosives - Withstands high temperatures - Manufactured with felt media for high dirt-holding capacity - International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0067GPSP8 | | Brand | Pentek | | Color | White | | Compatible Models | 155384-03, BP-420-1 | | Customer Reviews | 4.4 4.4 out of 5 stars (312) | | Date First Available | 15 September 2023 | | Item Weight | 86.2 g | | Material | Polypropylene | | Model Number | 155384-03 | | Product Dimensions | 10.16 x 45.72 x 10.16 cm; 86.18 g | ## Images ![Bag Filter, 155384, BP-420-1 Polypropylene 1 Micron, 4.5" x 20" - Image 1](https://m.media-amazon.com/images/I/61sMmcOOO0L.jpg) ## Questions & Answers **Q: Has anybody tried using this with a Venturi style pool vacuum? If so, how well did it work?** A: I found that these bags work every bit as well as the more expensive ones that our plumbing sub sold us. I will definitely reorder them. **Q: if you pour water into this how long does it take to drain with just gravity?** A: Don't know, we pump the water thru it with a pump. I think it would flow right it, with just gravity. A great filter. **Q: Is this bag "food grade"** A: Yes it is by definition of “Food Grade” **Q: Can this be used to filter cold brew coffee?** A: Not sure. Its ised to filter sediments from water so I'm mot sire why not. But I would think it is for cold water only. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by B***N on 15 July 2025* Worked great to remove dead mustard algae / pollen / dust (not sure what I was dealing with) from above ground pool that cartridge filter was missing. Zip tied it onto a return hose and ran the pump for a few hours. Pool is finally back to normal :). ### ⭐⭐⭐⭐⭐ Review *by M***K on 21 August 2022* Had problems with pollen/silt in the bottom of my pool this year. Cartridge filter not able to filter out the smaller microns and I assumed it was blowing it all back into the pool. Attached DANMAR Directional Pool Skimmer Jet Return Nozzle and then cut off the end of this filter to attach to it. Had to rig it to hold with couple of zip ties (cut holes to thread zip tie for tight fit) and clamped the open part- It WORKED!!! I was worried it would build up too much pressure on my pump but didn't raise it much. By the time I finished vacuuming I could see that it was blowing the dirt directly back into my pool like i thought. This filter caught what was blowing back into pool. After vacuuming I disconnected the vacuum and let it run for an hour to catch anything I stirred up then removed it and put regular return eyeball back on. Checked an hour later and the pool was clean- nothing settled back to the bottom. Wish I had discovered this at the beginning of the season, but ready for next year! Well worth the money and will buy more! Very pleased!! ### ⭐⭐⭐⭐⭐ Review *by T***S on 9 November 2020* works ## Frequently Bought Together - Bag Filter, 155384, BP-420-1 Polypropylene 1 Micron, 4.5" x 20" - Captain O-Ring - Replacement 151122 O-Rings Compatible with Pentair Pentek Big Blue Water Filters OEM Size ORing Buna-N (3 Pack) - Pentek BP-420-5 Polypropylene Bag Filter --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.kg/products/273924480-bag-filter-155384-bp-420-1-polypropylene-1-micron-4](https://www.desertcart.kg/products/273924480-bag-filter-155384-bp-420-1-polypropylene-1-micron-4) --- *Product available on Desertcart Kyrgyzstan* *Store origin: KG* *Last updated: 2026-05-20*