Nordic Pure 14x20x2 MERV 10 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer
KCL storage solution (10ml bottle)
It can be cut down to size to fit various applications
RoHS certified with IP65 water resistance for safe operation in high-humidity grow environments
Graphic Display Sound Meter water-filtration Nordic Pure 14x20x2 MERV 10Features a large bar graph display, A & C decibel frequency weighting scales, min max, peak, fast or slow response, AC or DC output, auto power off, low battery indicator. Covers 30 to 130 dB in the A & C scales with a resolution of 0. 1 dB and an accuracy of 1. 4 dB (ref 94 dB@1KHz). Comes ready to use with a windscreen, 9V battery, instructions, and a foam lined hard shell carrying case. N. I. S. T. Traceable Certificate of Calibration available, or