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BU3523 BU3521 Filter Replacement for Shark Clean and Empty Cordless Vacuum
✅ In stock
B
Grade
Analysis Confidence
100%
🏷️ Price includes Coupon savings
Check Deal at Amazon
Price verified Nov 13, 2026 8:45 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
👍 Good Deal- 👍Verdict: Good Deal. Solid value. Price is noticeably below the recent average.
- 💰The current price is 25% below what this product typically costs — a notable saving over its usual going rate.
- 🏷️A 15% cut from the official retail price adds further appeal.
- 📉Going back roughly eight months, a more competitive price has not appeared — this stands out as a strong value by recent standards.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
27.75/28
Recent Value
10.89/22
Market Standing
18.24/20
Deal Strength
13/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
Leadaybetter
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓Compatible Models: This detect filter replacement is perfect fit for shark clean lightweight cordless cleaner BU3523, BU3521, BU3120. Compare to part # XPRFIW1000 & XFBU3000. Please confirm the filter model you need before placing an order, so as not to buy the wrong one.
✓Premium Material: Made of high-quality materials, this filter is built to last. Can capture over 99.97% of dander, and hair with filtration. Covering tiny particles down to 0.3 microns. Works together to help your bu3521 lightweight cordless stick vacuum cleaner work better, and keep your room clean and comfortable. Improve the surrounding air quality and protect your health.
✓Washable & Reusable: The bu3521 filter for shark are washable and reusable. Can be rinsed under a stream of water to remove dirt from the surface. Make sure the filter is completely dry before use. For optimal performance, it is recommended to change this filter set once every 1-3 months.
✓Package Includes: 3 handheld pre-motor filters, 3 Auto-empty system pre-motor filters, 3 auto-empty system HEPA filters, 1 cleaning brush. Our filter set is the best-valued pack which lasts you 6 months, thus saving you more time and hassle, Our filters are effective, easy to use and clean, you will love them.
✓Our Service: We are committed to providing you satisfied service. You will get reply within 24 hours and will help you solve the problem ASAP for you, if you have any questions about this filter replacement, please don't hesitate to contact us.
⚙️ Specifications
Brand
Leadaybetter
Material
Foam, Plastic
Compatible Devices
Compatible with Shark Clean Lightweight Cordless Cleaner models BU3523, BU3521, BU3120. Compare to Part XPRFIW1000, XFBU3000.
Product Dimensions
4.1"L x 3.3"W x 1.1"H
Reusability
Reusable
Brand Name
Leadaybetter
Model Info
BU3523 BU3521 BU3120
Item Weight
12.3 ounces
Item model number
BU3523 BU3521 BU3120
Part Number
XPRFIW1000, XFBU3000
Color
Black & white