FILTER 20 X 20 X 1 NATURALAIRE M13 Round Metal Rods Automatically records any motion /

Automatically records any motion / noise

Vermeer AutoSweep® system

Includes an aluminum outgoing mail flag

Fits most standard 1-1/2 inch bathtub drains

A 3-in-1 versatile tip included: micro torch

FILTER 20 X 20 X 1 NATURALAIRE M13 Round Metal Rods Automatically records any motion /MERV 13. The top tier of filters for contaminant removal in residential retail air filters. Also for application in general surgery, hospitals, and health care facilities. Up to 90 days effective against pollen, pet dander, dust mites, dust and lint, smoke, mold, smog, bacteria, virus carriers, microscopic allergens, oil, smoke, and lead dust. Electrostatically charged. Wire backed media.