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50 Gallons or Less & Complete Kits
Hagen A7821
18 ml Nutrafin Ammonia Freshwater Reagent Refill
A7821(R)
Your Price: $5.00

Detailed Description

Nutrafin Ammonia (0.0 - 7.3 mg/L) Reagent Refill for use with Nutrafin Ammonia (0.0 -7.3 mg/L) Test Kit. Weekly testing of ammonia levels will indicate if the biological filter activity is working efficiently or if the ammonia is reaching dangerous levels. For freshwater use only, 18 mL.