Hanna HI77400P pH 4.01 and 7.01 Calibration Buffer Sachets (10 x 20mL, 5 Each) env-tent This means the curing vault

This means the curing vault is entirely impenetrable by light for a super durable craft

It is a form-fitting sleeve made of polyester to block hair

This peat has a high compression ratio resulting in higher yields per bale than most standard peat grades

Easily move around and test where you need to

Hanna HI77400P pH 4.01 and 7.01 Calibration Buffer Sachets (10 x 20mL, 5 Each) env-tent This means the curing vaultHI77400P is a set of premium quality pH 4. 01 and 7. 01 calibration buffer solutions. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened. Hanna's line of calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened sachet. The HI77400P is for 5 sachets of pH 4. 01 and 5 sachets of pH 7. 01 with