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Makes it easy to monitor the pH value in fresh and marine water and ponds
Dimensions: 20x4x23 cm
Sensor exhaustion is indicated by a visible fading or washing out of sensor color
cholicalciferol (Vitamin D3)
3dKH with a sharp color change
Johnlen Coldwind Cooler F4 HEATER Makes it easy to monitorJohnlen Coldwind Quad Fan 400 Up to 200L Aquarium Economical convenient cooling fans with low voltage security transformer. Easily attaches to aquarium, twin & quad models with adjustable angle. Can reduce water temperature by 2 3C depending on room temperature, aquarium size and position angle of fan. Dimensions: W400mm x H125mm x D65mm
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