Bird Bath Purification Disks, Copper, Pack of 4

Keep 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 disk ensure it does not sit on the base of your bowl, and allow water to circulate fully around it. Compact size makes these items easy to place in existing baths with a variety of shapes and dimensions. Each circle maintains its effectiveness for a considerable time, even after the copper changes to verdigris. Made in the USA. Note: This case pack contains 4 of the Erva Bird Bath Purification Disks, Copper.Dimensions: 3.875" dia. x 0.0625"H each Bird Bath Purification DisksMounting: place in existing bird baths Bird Bath Purification DisksC