Dolphin Custom Cut Felt Filter Material: Unique dolphin-shaped blue felt filters, perfectly sized to match corresponding pet water fountain models sold widely across the UK. Precise cut avoids gaps, effectively intercepts hair, food residue and floating impurities. Multi-Layer Adsorbent Filtration Performance: Dense thick fibre felt traps pet fur, sediment and fine debris, while absorbing bad odours from tap water. Keeps fountain water fresh and clean for cats, small dogs and other household pets all year round. Safe Non-Toxic Thick Felt Construction: Made of food-grade non-woven felt without harmful chemical coatings, safe for pets to drink filtered water. Resists tearing during replacement and daily water circulation, durable for frequent use. Value Multipack & Simple Replacement: This pack contains 6 replacement filter pads, extending service cycles and reducing frequent repurchases. Tool-free swap design: just take out the old pad and slot in the new dolphin filter in seconds for quick fountain maintenance. Wide Application for Indoor Pet Water Fountains: Compatible with most standard circulating cat water fountains popular in British households. Ideal for homes with kittens, adult cats and small dogs, maintains clean drinking water to protect pets’ urinary and digestive health.