Hanna HI98127 4 pHEP Digital pH and Temperature 0-14pH Waterproof ATC Pocket pH Tester UV Bulbs Contains 1 pre and 1

Contains 1 pre and 1 post filter in a package

18x30x1 MERV 13 Air Filter - Box of 6

WHEERM has been certified and tested against NSF/ANSI standard 58 for the reduction of total dissolved solids and organic matter

The post-filter now has an orange tip

Hanna HI98127 4 pHEP Digital pH and Temperature 0-14pH Waterproof ATC Pocket pH Tester UV Bulbs Contains 1 pre and 1The Hanna HI98127 pHep4 lightweight and sleek tester is accurate to 0. 1 pH with a built in thermometer to automatically adjust the pH reading for temperature. The waterproof design (it floats), simple operation, and replaceable electrode mean that you can rely on this meter for years. The large LCD display shows both pH and temperature readings simultaneously, while a stability indicator is displayed to alert you when a stable reading has been