Hanna HI70004P pH 4.01 Calibration Buffer Sachets (25 x 20 mL)

$45.49

Single-use pH 4.01 buffer sachets for calibrating pH meters, testers and probes.

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Equipment and dry goods ship at their own rate. Free UPS Next Day Air shipping begins at $349 in qualifying livestock, so this item does not count toward that threshold and never receives the $10 livestock Box & Handling Fee. Dry-goods shipping is shown in the cart before you pay.

We ship within the continental U.S. only. We do not ship to Alaska or Hawaii.

Description

Single-use pH 4.01 buffer sachets for calibrating pH meters, testers and probes.

25 sachets of 20 mL each
pH 4.01 at 77°F (25°C), accuracy ±0.01 pH
Traceable to NIST standard reference materials
Light-blocking foil sachets marked with lot number and expiration date
5-year shelf life unopened

Shipping See current rates and ship days.

Shipping & Returns

Equipment and dry goods ship at their own rate. Free shipping at $349 or more applies to qualifying livestock only — corals, fish, inverts and live copepods. The $10 box & handling fee is a livestock packing fee and does not apply to dry-goods orders.
All sales are final on equipment and dry goods. We are a retail store, not the manufacturer.
Register your product with the manufacturer and keep your receipt — their warranty is how a faulty unit gets replaced, and they are faster at it than a shop could be.
Not sure who to contact for a warranty claim? Call us and we will point you to the right place.

Full Refunds & Returns policy

Ships from our Key West store · (305) 850-9949