1. Easy to use 2. Green indicators are ideal range of water temperature and specific gravity for most salt water / marine aquariums 3. Hydrometer measures specific gravity 4. Need it for raising brine shrimp

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 0.8 inch
Height : 0.8 inch
Length : 6.2 inch

Item Weight: 0.32 ounce (View shipping rates and policies)
Shipping Weight: 0.32 ounce (View shipping rates and policies)

ASIN : B00XAFBXYO