BIRDBATH PROTECTOR 4oz CAREFREE ENZYMES: BIRDBATH PROTECTOR 4oz $6.25 SKU: CFE95563 QTY: BIRDBATH PROTECTOR 4-OZ Formulated for outdoor Birdbaths that contain approximately, 1 gallon of water or less. Prevents stains, organic contaminants, and mineral deposits. Keeps water clean and clear naturally. Safe for wildlife and pets that may drink from birdbath. Non-toxic. All natural, bacteria free enzymes. Application: 1 capful per week (bottle treats 22 weeks).