Fritz General Hardness Test Kit

Marsoni

M251S

$14.99

Get it in 3 business days with 1 day shipping. Friday, May 29

Fritz General Hardness Test KitFRITZ LIQUID TEST KIT GH TEST KIT General hardness (GH) is commonly overlooked in many aquariums, but this parameter plays a very important role in your aquariums overall health. Easy to read Instructions. Essential for a Healthy Tank. Accurate in Freshwater.

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Exchange/Return Notes

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Reviewed in the United States on January 16, 2026