The Nature2 A30 Replacement Cartridge works for 5,000 to 30,000 gallon above ground pools.Please Note: This Nature 2 A30 Replacement Cartridge W28165 contains one replacement cartridge. This is a single unit cartridge for the Nature2 A30 Replacement Cartridge W26765 four pack. Limited Cartridges (three posts) fit in any vessels. Standard Cartridges (two posts) only fit in standard vessels. May ship out as the W28166.
- Replacement mineral cartridge for all A vessels * note will not work in the limited vessel
- Designed for above-ground pools between 5,000 to 30,000 gallons
- Fits all Nature 2 Above Ground A Vessels (except Nature2 Limited)
