Philips One by Sonicare Replacement Brush Heads 2-Pack Deal

The Philips One brush heads just dropped to $6.17 for a 2-pack — solid timing if you're due for a swap and already own the handle.

A genuinely cheap refill if you already own the Philips One

Replacement brush heads are one of those things people put off buying because they never feel urgent — until they really should have replaced theirs two months ago. At $6.17 for two, this lands at about $3 a head, which is on the low end for brand-name replacements. Dentists typically suggest swapping every three months, so a 2-pack covers roughly half a year. The black colorway is a minor but nice detail if you have the matching black handle and care about that sort of thing.

The one thing to double-check before buying

These are made specifically for the Philips One handle — the battery-powered, entry-level model — and they are not compatible with the rechargeable Sonicare DiamondClean, ProtectiveClean, or other premium Sonicare lines. That's a real gotcha if you're browsing fast. If your handle is a Philips One (it'll say so on the device or the original packaging), you're good. If you own a different Sonicare model, these won't fit. Worth a 10-second check before checkout.

Current deal price: $6.17 on Amazon (price/availability can change).