Sixteen parts, one delivery
Eight carbon cartridges plus eight intake sponges — the complete consumable set, nothing sold separately.

Eight filters and eight sponges in one order — a full quarter of clean fountain water at a better price per change than the small pack.
Eight filters and eight sponges — roughly four months of clean water without reordering.
Once a fountain has become part of the routine, buying cartridges four at a time starts to feel like buying coffee by the cup. The 8-pack is the sensible middle order: on the standard two-week cycle it keeps a single-pet fountain fed for roughly four months, and in a busier multi-pet house it still buys you two months of not thinking about it.
The cartridges themselves are the upgraded specification — refined coconut-shell carbon in a high-density fabric shell, matched to the 50, 84, 95 and 108oz tanks — with each one sealed individually so the last filter of the batch performs like the first.
Eight carbon cartridges plus eight intake sponges — the complete consumable set, nothing sold separately.
The refined pore structure keeps absorbing odours and minerals deep into each two-week shift.
Individual sealing means the pack can live in a cupboard for months without the carbon going stale.
Fits every classic tank size in the range, so multi-fountain homes need only one reorder.
Per swap, the 8-pack undercuts buying two 4-packs — the maths favours the bigger box.
The award-winning 2.8L fountain for cats and small dogs — whisper-quiet pump, triple filtration and days between refills.
Four carbon filters plus four pre-filter sponges for the classic Veken fountains — a two-month supply.
Replacement filters and sponges sized for the 50oz, 95oz and 108oz fountains — the standard refresh kit.