Hanna Phosphorus Ultra Low Range Reagents (25 pack)

Hanna HI736-25 supplies 25 reagent tests for the HI736 Ultra Low Range Phosphorus Checker. It is intended for that marine phosphorus method, which reports in parts per billion of phosphorus.

Phosphorus and phosphate readings are related, but they are not the same numerical value or unit. Keep the HI736 result labeled as phosphorus in your records, and use the appropriate conversion only when comparing it with a phosphate target or another testing method.

The premeasured packets are added to a prepared water sample following the HI736 instructions. Protect the supply from moisture, check expiry information, and pair it with the correct Checker. An HI774 phosphate refill is a different product despite the similar parameter name.