As of Oct 27, 2026, 11:53 AM ET, the Waterdrop X8 RO System Replacement Filter Combo Set - 800GPD is listed online by Waterdrop (waterdropfilter.com) at $89.97–$319.93; the store's feed doesn't report stock.
Waterdrop sells it online at waterdropfilter.com. The price and stock here come from Waterdrop's own product feed, checked Oct 27, 2026.
| Option | Model no. | Price | Online availability | |
|---|---|---|---|---|
| Standard | 41264158376018 | $89.97 | Listed online (stock not reported) | Buy at waterdropfilter.com |
| Standard | 41264158408786 | $319.93 | Listed online (stock not reported) | Buy at waterdropfilter.com |
Buy links go to the retailer through an affiliate network, and Aisles Ecommerce may earn a commission if you buy. It doesn't change the price. Disclosure.
At Waterdrop it costs $89.97 to $319.93, depending on the option, as of Oct 27, 2026.
Waterdrop's product feed doesn't say whether it's in stock. It lists 2 options at waterdropfilter.com; check there before you buy.
