Questions? Call us!
+1 (978) 295-7538
Mon-Fri: 9AM - 5PM EST
KwiKool 18-FILTERBIO 4" HEPA Replacement Filter – For KBP1800 and KBX1800
$497.00
FREE SHIPPING on this item
Ships from US manufacturer with factory warranty
Authorized RetailerFactory-authorized dealer with genuine products
Manufacturer's WarrantyFull manufacturer warranty included
30-Day ReturnsHassle-free returns within 30 days
Lowest Price GuaranteedWe match any competitor's price
Order before 5:00 PM EST for same-day dispatch. Estimated delivery:
Need help choosing? Talk to an expert
+1 (978) 295-7538The KwiKool 18-FILTERBIO is the OEM 4-inch HEPA replacement filter for the KBP1800 and KBX1800 BioAir 1800 CFM air scrubbers. It captures 99.999% of particles 0.12 microns and larger (ULPA-grade) and is sized specifically for the larger filter frame on the 1800 CFM models — not interchangeable with the 14-FILTERBIO used on the 600 and 1000 CFM units. Use with the 18-FILTERPRE pre-filter to extend service intervals.
- Compatible models: KBP1800, KBX1800
- Filter depth: 4 inches
- Efficiency: 99.999% @ ≥0.12 microns (ULPA-grade)
- Not compatible with: KBP600, KBP1000, KBX600, KBX1000 (use 14-FILTERBIO for those)
- Pair with: 18-FILTERPRE pre-filter
Manufacturer's Warranty
This product comes with a full manufacturer's warranty. All warranty claims are handled directly by the manufacturer.
For specific warranty details, please contact us at +1 (978) 295-7538 or email info@uscleaningtools.com
B2B & Tax-Exempt Purchases
We supply contractors, restoration companies, property managers, schools, government agencies, and other tax-exempt organizations.
How to place a tax-exempt order:
- Write to us through our Contact Us page or email info@uscleaningtools.com and attach your valid tax exemption certificate (state resale or exemption certificate).
- We verify your certificate and mark your account tax-exempt — usually within one business day.
- Place your order and sales tax will not be charged.
For volume pricing or purchase orders, call +1 (978) 295-7538.
Shipping & Returns
Free shipping on most brands for orders over $300, delivered to the lower 48 states. Any brand-specific freight rate is shown at checkout before you pay.
Processing & delivery: in-stock orders are processed within 1–2 business days and typically deliver in 5–7 business days. Tracking is emailed within 24 hours of shipment. Built-to-order and backordered equipment shows its lead time on this page.
Freight deliveries: inspect your equipment on arrival and note any damage on the delivery receipt. Items damaged in transit or defective on arrival are fully covered at no cost to you.
Cancellations: cancel any time before your order ships. Refunds are issued for the order total minus the non-refundable payment processing fee (2.9% + $0.30), so a cancellation is not always a 100% refund. No fee is deducted if we cancel the order or the item arrives damaged or defective.
30-day returns: return unused equipment in its original packaging within 30 days of delivery. Change-of-mind returns are subject to a restocking fee. To start a return, email info@uscleaningtools.com or call +1 (978) 295-7538.
$497.00
Complete your setup
Commonly paired with the KwiKool 18-FILTERBIO 4" HEPA Replacement Filter – For KBP1800 and KBX1800
Added to your order — shipped together.
Machines the KwiKool 18-FILTERBIO 4" HEPA Replacement Filter Fits
This part is a confirmed fit for the machines below. Model not listed? Call 9782957538 before ordering.
Compare products
{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}