[ PREUM QUALITY ] 4 pack high quality activated carbon filters. Size: 5.1*0.4inch.
[ SCOPE OF APPLICATION ] Replacement water fountain filters compatible with pet fountains.
[ PURIFYING PERFORMANCE ] Filter hair and residue, remove odors and soften water, getting better water tasting.
[ QUENCY OF REPLACEMENT ] We suggest to replace it 2-4 weeks to keep the water fresh and clean.
[ large water capacity design ] : encourages your pets to drink more to stay healthy.