Ring for ceramic tanks with effective microorganisms. Can be used to purify the water of tanks, accumulations, bathtubs and generally containers up to 200 liters (per ring). It can be used to counteract electromagnetic fields.
Unlimited shelf life.
Outer diameter of the ring; cm 5,8; ceramic diameter: 1.8 cm.
One-piece packaging
Attention: item available in about ten days from the order
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