it says expiration date 5/2021 , are they still usable?

Probably, they are dry reagents. I would suggest ordering a new batch, comparing tests, and then decide.

So just to confirm hi774 is the same as hi736?

Hello hi774 is NOT the same as hi736. HI774-25 is designed to be used with samples that have an expected range of 0.00 to 0.90 ppm phosphate. HI736-25 is designed to be used with samples that have an expected range of 0 to 200 ppb phosphorus.

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Hanna Instruments HI774-25 Phosphate Ultra Low Range Checker HC Reagents (25 Tests) by wwG Store

Product ID: 138092753

Details

Brand
Hanna
Global Trade Identification Number
Manufacturer
Hanna
Package Information
Bag
Unit Count
1 Count

⏳Expiration date & lot number traceability

🔬Ultra low range phosphate detection (0.00-0.90 ppm)

🧪25 pre-measured reagent tests

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Description

🧪 Stay ahead in water quality testing with precision-packed reagents!

EFFORTLESS INTEGRATION - Designed specifically for Hanna Instruments HI774 Ultra Low Range Checker HC for seamless testing.
PRECISION IN EVERY PACKET - Pre-measured reagents ensure fast, accurate phosphate readings without guesswork.
TRACEABILITY YOU CAN TRUST - Each reagent packet is marked with expiration date and lot number for full quality control.
ULTRA LOW RANGE SENSITIVITY - Detect phosphate levels as low as 0.00 ppm, perfect for critical water quality monitoring.
PURE CHEMISTRY PURE RESULTS - Formulated with high purity chemicals to guarantee consistent and reliable test outcomes.

The Hanna Instruments HI774-25 reagent packets provide 25 pre-measured tests for ultra low range phosphate detection (0.00 to 0.90 ppm) using the Ascorbic Acid Method. Each packet is crafted with high purity chemicals and includes expiration and lot number markings for traceability, ensuring fast, accurate, and reliable phosphate measurements when used with the HI774 Checker HC.

Specifications

ASIN	B07SN7NSHP
Best Sellers Rank	#8,785 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #12 in Analytical Reagents
Brand Name	Hanna Instruments
Container Type	Bag
Customer Reviews	4.8 4.8 out of 5 stars (413)
Global Trade Identification Number	00860012631049
Manufacturer	Hanna Instruments
Model Number	HI774-25
Part Number	HI774-25
Unit Count	1 Count

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€ 57.81

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Greece.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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