Erva Bird Bath Purification Disks, Copper, Pack of 4 purple martin bird house A varied blue glaze throughout

A varied blue glaze throughout the concentric rings on each stoneware piece brings dimension and style to your landscaping

while their UV stabilized

pitched roof opens and closes easily for refills and maintenance

Included keys keep the telescoping sections securely in place

slot shaped entry

Erva Bird Bath Purification Disks, Copper, Pack of 4 purple martin bird house A varied blue glaze throughoutKeep the water in several bird baths free of algae and microbes with these 4 Erva Copper Bird Bath Purification Disks. Package of 4 thin, 3. 875" diameter copper disks, each designed to sit in an existing bird bath. Copper has been proven to eliminate bacteria and viruses, great for disinfecting standing water. This metal affects microorganisms on an ionic level, for a lasting source of water purification. Three small nubs on the underside of each