Scale-Inhibitor Cartridge 3-Pack for Humidifier 747S

Name: Scale-Inhibitor Cartridge 3-Pack for Humidifier 747S
Brand: DREO
SKU: 10-990461-001
Price: 12.79 USD
Availability: InStock
Rating: 4.6 (5 reviews)

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$12.79 ~~$19.99~~ In stock

Category: Accessories

DREO Scale-Inhibitor Cartridge 3-Pack for Humidifier 747S, Prevent Mineral Buildup, Triple-Layer Tech, Extend Humidifier Life, Safe Material

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.6 / 5 · 5 reviews)

Amelia T. ★★★★★ Oct 18, 2026

The triple-layer tech really works—I noticed way less white dust after just a few days. My humidifier’s tank stays cleaner too, which makes maintenance much easier.

Claire S. ★★★★★ Oct 17, 2026

I’ve been using these cartridges for a month now and the triple-layer tech really keeps the mineral buildup out of sight. My humidifier runs noticeably quieter since I switched, and the mist stays clean without that white dust.

Emma ★★★★★ Oct 13, 2026

Swapping in a fresh cartridge every few weeks has kept my humidifier running like new, and I haven't seen any chalky film on the tank since. The triple-layer design seems to actually catch the minerals instead of just letting them settle everywhere.