{"product_id":"hanna-phosphate-low-range-checker-reagents-25-tests-hi713-25","title":"Hanna Phosphate Low Range Checker Reagents (25 Tests) - HI713-25","description":"\u003cp\u003eThese are replacement reagents for the Hanna HI713 Phosphate Low Range Checker HC, supplied as 25 individual packets (HI713-25). Each packet is a single test, so you can restock your checker without having to buy a whole new unit.\u003c\/p\u003e\u003cp\u003eThe reagents come pre-measured, so there's nothing to weigh out or mix beforehand. You add a packet to your water sample and let the checker do the reading. The test uses the Ascorbic Acid Method, which turns the sample a blue tint. The HI713 reads that colour and displays the phosphate level in ppm (mg\/L). The method follows Standard Methods for the Examination of Water and Wastewater, 20th edition. Every packet carries a lot number and expiration date, so you can see at a glance whether your stock is still in date.\u003c\/p\u003e\u003cp\u003eThey suit reef and marine keepers who already own the HI713 checker and want to keep tracking phosphate, particularly if you're working to keep nutrients low in a coral-heavy system. The test is designed for samples in the 0.00 to 2.50 ppm range.\u003c\/p\u003e\u003cp\u003eSpecs: SKU HI713-25, Phosphate Low-Range Checker Reagents, 25 tests supplied as packets, Ascorbic Acid method with a blue tint colorimetric reaction.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":67662787576034,"sku":"HI713-25","price":22.5,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0066\/1284\/4602\/files\/41FB30D6-F67D-468D-9379-13084A6AB6EA_07889b72-a268-4681-bb40-3a2bf06899b6.jpg?v=1791782012","url":"https:\/\/reefsecrets.com.au\/products\/hanna-phosphate-low-range-checker-reagents-25-tests-hi713-25","provider":"Reef Secrets ","version":"1.0","type":"link"}