• By Pet Things – Fur, Hair, Fins and Feathers!

Rena Crystal Cartridges- Refill cartridges to be used with the Rena Super Clean Internal Filter system. Helps keep water fresh and clean for your pet, thus ensuring a safe and healthy habitat. Helps filter out colours, odours, impurities, and toxins.

• 6 pack
• Treats for up to three weeks per pack
• Easy to use
• Safe and effective