How the quality of prefilters? thick and sturd as the oem?

They are premium prefilters and same as oem quality. You can buy with confidence.

Do these hepa have odor ?

Not at all. Even when first unpackaged. The odor of clean air after needing a new filter for 3 weeks is all I smell! :)

4870 isn't listed with compatible models so I would think not.

Replacing filters worked, but red led ("replace filter") still blinks ?

Try holding the UV light button for 5 seconds. That should reset the replace filter light.

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FLT4825 HEPA Filter B Replacement for Guardian Air Purifier AC4825E AC4820

FLT4825 HEPA Filter B Replacement for Guardian Air Purifier AC4825E AC4820

Product ID: 657293023

Details

Air Filter Construction
Pleated
Brand
isinlive
Filter Shape
Rectangular
Item Weight
13.76 ounces
Manufacturer
isinlive
Material
Plastic

♻️FSC-certified eco materials

🌬️True HEPA filtration

🛠️Perfect multi-model fit

R1733

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Description

🌿 Breathe smarter, live fresher — the ultimate filter upgrade you can’t afford to miss!

BULK VALUE PACK - Includes 4 HEPA filters + 8 carbon pre-filters—enough for year-round freshness without the hassle.
SUSTAINABLY CRAFTED - Made with FSC-certified paper and backed by responsive customer support for worry-free maintenance.
SEAMLESS COMPATIBILITY - Fits 10+ top Guardian, PureGuardian & Black+Decker models for effortless upgrades.
VERSATILE EVERYDAY USE - Ideal for bedrooms, offices, kitchens, and pet zones—breathe cleaner air wherever you work or relax.
ADVANCED DUAL FILTRATION - Combines HEPA Filter B with activated carbon pre-filters to trap 99.97% of airborne particles and odors.

The FLT4825 HEPA Filter B Replacement is a premium, multi-pack filter set designed for Guardian, PureGuardian, and Black+Decker air purifiers. Featuring true HEPA filtration paired with activated carbon pre-filters, it effectively removes 99.97% of airborne pollutants and odors. This eco-conscious, FSC-certified pack includes 4 HEPA filters and 8 carbon pre-filters, ensuring a full year of clean air in various living and workspaces. Compatible with over 10 purifier models, it offers a seamless, reliable upgrade backed by excellent customer support.

Specifications

ASIN	B07RJ36L6L
Air Filter Construction	Pleated
Best Sellers Rank	#9,017 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #64 in Home Air Purifier Parts & Accessories
Brand	isinlive
Brand Name	isinlive
Common Applications	Appliances
Compatible Air Purifier Models	GermGuardian AC4300BPTCA, GermGuardian AC4850PT, GermGuardian AC4900CA, PureGuardian AP2200CA
Compatible Devices	Compatible with Guardian filter b, FLT4825, AC4300BPTCA, AC4900CA, AC4825, AC4825E, AC4850PT, AC4900CA, Compatible with PureGuardian Model AP2200CA and Black+Decker BXAP148 Compatible Devices Compatible with Guardian filter b, FLT4825, AC4300BPTCA, AC4900CA, AC4825, AC4825E, AC4850PT, AC4900CA, Compatible with PureGuardian Model AP2200CA and Black+Decker BXAP148 See more
Compatible Hvac Systems	residential
Customer Reviews	4.8 out of 5 stars 5,403 Reviews
Filter Shape	Rectangular
Item Dimensions L x W x Thickness	15.7"L x 4.7"W x 0.6"Th
Item Highlight	Also Fits for AC4825 AC4300 AC4800 AC4880 AC4900 AC4850 AC4850PT AP2200CA, 4 Pack HEPA with 8 Activated Carbon Pre-Filters
Item Weight	13.76 ounces
Manufacturer	isinlive
Material	Plastic
Material Type	Plastic
Model Number	FLT4825
Number of Items	12
Number of Packs	5
Product Dimensions	15.7"L x 4.7"W x 0.6"Th
Product Grade	new
UPC	680904375826
Unit Count	12 Count

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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R1733

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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