Check the listing for details. Feliway Classic Diffuser Refill 48 Ml Cat Constant Calming 2 Refills. Condition: New. Listed at 21.00 USD. Enhance the comfort of your feline companion with the Feliway Classic Diffuser Refill. This refill is designed to provide a constant calming effect for your cat, making it perfect for use in your home. The 48 ml capacity ensures long-lasting use, making it a cost-effective way to keep your cat feeling relaxed. The refill is compatible with the Feliway diffuser, which can be used in any room where your cat spends time. This Feliway Classic Diffuser Refill is specifically designed for cats and is ideal for use in pet supplies. It is a high-quality product that offers a range of benefits, including a calming effect, convenience, and cost-effectiveness. The refill is designed to provide a constant calming effect to help your cat feel more at ease in their surroundings. With this refill, you can provide your cat with a comfortable and relaxing environment without having to worry about their condition.