--- product_id: 22448923 title: "CFS – 4.8\" x 15.75\" Activated Carbon Pre-Filters Compatible with GermGuardian FLT4825 HEPA Filter and AC4800 Series (Filter B) – Removes Odor, Smoke & VOCs – Replacement Pre-Filter – 4 Pack" brand: "cfs" price: "R439" currency: ZAR in_stock: true reviews_count: 13 category: "Cfs" url: https://www.desertcart.co.za/products/22448923-cfs-4-8-x-15-75-activated-carbon-pre-filters store_origin: ZA region: South Africa --- # Months-long reliable use Universal fit across 12+ models 99.97% pollutant capture CFS – 4.8" x 15.75" Activated Carbon Pre-Filters Compatible with GermGuardian FLT4825 HEPA Filter and AC4800 Series (Filter B) – Removes Odor, Smoke & VOCs – Replacement Pre-Filter – 4 Pack **Brand:** cfs **Price:** R439 **Availability:** ✅ In Stock ## Summary > 🌬️ Breathe Brilliance: Elevate your air, elevate your life. ## Quick Answers - **What is this?** CFS – 4.8" x 15.75" Activated Carbon Pre-Filters Compatible with GermGuardian FLT4825 HEPA Filter and AC4800 Series (Filter B) – Removes Odor, Smoke & VOCs – Replacement Pre-Filter – 4 Pack by cfs - **How much does it cost?** R439 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/22448923-cfs-4-8-x-15-75-activated-carbon-pre-filters) ## Best For - cfs enthusiasts ## Why This Product - Trusted cfs brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile & DIY Friendly:** Customizable carbon sheets adapt to various air vents and projects, enhancing whole-home air quality. - • **Elite HEPA Filtration Power:** Captures 99.97% of microscopic pollutants down to 0.1 microns, including wildfire smoke and odors. - • **Durable Activated Carbon Layer:** Premium mesh and stretch fabric ensure long-lasting odor control without compromising airflow. - • **Precision Fit for Top Air Purifiers:** Seamlessly compatible with 12+ GermGuardian & PureGuardian models for hassle-free replacement. - • **Effortless Installation & Maintenance:** Quick, tool-free filter swaps keep your air fresh without interrupting your busy lifestyle. ## Overview The FLT4825 HEPA Filter B Replacement is a high-efficiency air purifier filter compatible with over a dozen GermGuardian and PureGuardian models. Engineered to trap 99.97% of airborne particles as small as 0.1 microns—including dust, pollen, pet dander, and wildfire smoke—this filter ensures consistently clean, odor-free air. Its durable activated carbon pad and easy installation make it a reliable, long-lasting upgrade for maintaining optimal indoor air quality. ## Description Carbon Activated Pre-Filter 4-pack made in the USA from CFS for use with the GermGuardian FLT4825 HEPA Filter, AC4800 Series. This is not a GermGuardian OEM product and is not covered under any GermGuardian manufacturer's . The GermGuardian brand names and logos are the registered trademarks of their respective owners. Any use of the GermGuardian brand name or model designation for this product is made solely for purposes of demonstrating compatibility. " Review: Exactly as described - Exactly what was described, these filters work great with my Germ Gaurdian air purifier. Efficiently works with the purifier. Review: THEY ARE AWESOME. THEY WORK WELL - THEY ARE AWESOME. THEY WORK WELL ## Features - Carbon Activated Pre-Filter 4-pack - Made in the USA From CFS (Complete Filtration Services ) - These Filters Are For Use With The GermGuardian FLT4825 HEPA Filter - Each filter is 4. 8"x15. 75" - Heat-Sealed Bag Insures Freshness ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0161I3YS4 | | Best Sellers Rank | #146,810 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #840 in Air Purifier Filters | | Brand | CFS | | Brand Name | CFS | | Color | Black | | Contaminant Filtration Capability | High | | Controller Type | Touch Control | | Customer Reviews | 4.6 out of 5 stars 7,687 Reviews | | Filter Class | HEPA | | Filter Type | Activated Carbon , HEPA | | Global Trade Identification Number | 00718194295934 | | Item Type Name | AC4800 Series, Filter B By Complete Filtration Services | | Item Weight | 1.13 Ounces | | Manufacturer | CFS | | Model Number | Carbon Activated Pre-Filter 4-pack for | | Part Number | FBA_B0161I3YS4 | | Particle Retention Size | 0.1 Micron | | Smart Home Compatibility | Not Smart Home Compatible | | Special Features | Wide compatibility and high-efficiency filtration | | UPC | 718194295934 773822362358 | | Unit Count | 4 Count | ## Product Details - **Color:** Black - **Brand:** CFS - **Product Dimensions:** 2.8"D x 4.8"W x 15.75"H - **Floor Area:** 1.0 - **Controller Type:** Touch Control ## Images ![CFS – 4.8" x 15.75" Activated Carbon Pre-Filters Compatible with GermGuardian FLT4825 HEPA Filter and AC4800 Series (Filter B) – Removes Odor, Smoke & VOCs – Replacement Pre-Filter – 4 Pack - Image 1](https://m.media-amazon.com/images/I/71mbEsHUH-L.jpg) ![CFS – 4.8" x 15.75" Activated Carbon Pre-Filters Compatible with GermGuardian FLT4825 HEPA Filter and AC4800 Series (Filter B) – Removes Odor, Smoke & VOCs – Replacement Pre-Filter – 4 Pack - Image 2](https://m.media-amazon.com/images/I/41UguTxzBpL.jpg) ![CFS – 4.8" x 15.75" Activated Carbon Pre-Filters Compatible with GermGuardian FLT4825 HEPA Filter and AC4800 Series (Filter B) – Removes Odor, Smoke & VOCs – Replacement Pre-Filter – 4 Pack - Image 3](https://m.media-amazon.com/images/I/61Y3U5zcQjL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Are these required when changing the filter? What is it's purpose?** A: This is the black carbon filter that comes attached to the HEPA filters you buy. It is what collects a lot of physical dust and things and keeps the HEPA filter (which is much more expensive) lasting longer. I can usually change this carbon filter out twice for every HEPA filter change out. **Q: how do you install these do you attach to the orginal filter via the velcrow?** A: Do I put it in the front or back of the filter holder? I read it can be done either way. Had it in the back, then front. My fish aquarium back and the fish are healthy. **Q: Do you have to buy these as well as the hepa filters or will the hepa filters alone be sufficient?** A: I use both. I change these pre-filters every month, which I find to extend the life of the hepa filters. There are smokers in my house, I run my unit 24 x 7, and when I change the pre-filters I was amazed at how filthy they were. Hope this helps answer your question... **Q: Removed old filter. Light is still flashing red after new filter replacement. Anyone else having this issue??** A: On the top of my GermGuardian it says to hold the UV light button for 5 seconds to reset the filter light. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Exactly as described *by C***L on January 4, 2026* Exactly what was described, these filters work great with my Germ Gaurdian air purifier. Efficiently works with the purifier. ### ⭐⭐⭐⭐⭐ THEY ARE AWESOME. THEY WORK WELL *by A***G on June 20, 2025* THEY ARE AWESOME. THEY WORK WELL ### ⭐⭐⭐⭐⭐ Better filter efficiency. *by A***R on June 22, 2025* Right product at the right price. I live along a heavily traveled bus route so I use them on my room filtration units between filters to capture dust and hydrocarbines ## Frequently Bought Together - CFS – Carbon Activated Pre-Filter Compatible with FLT4825 HEPA Filter, AC4800 Series, Filter B Models – Fresh & Filtered Air for Indoor – Charcoal Air Filter Sheet – 4.8"x15.75" – Black (4 Pack) - GermGuardian Genuine HEPA PURE Replacement Air Purifier Filter B for AC4825, AC4300, AC4900, AC4825DLX, AC4850, CDAP4500 & AP2200, FLT4825, Black/Yellow - GermGuardian 4-In-1 HEPA Air Purifier for Home, Large Rooms Up To 743 Sq. Ft. with HEPA Air Filter, UC-V Light & Odor Reduction, AC4825E, 22" Tower, Gray --- ## 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.co.za/products/22448923-cfs-4-8-x-15-75-activated-carbon-pre-filters](https://www.desertcart.co.za/products/22448923-cfs-4-8-x-15-75-activated-carbon-pre-filters) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-05-29*