13 15/16 x 29 15/16 x 3/4 (13.94 x 29.94 x 0.75) Pure Green Eco-Friendly AC Furnace Air Filters 6 Pack food-&-water-storage Designed specifically for use with

Designed specifically for use with the Bluelab Guardian Monitor

The wand's lightweight aluminum construction allows for reinforced walls

This cover is for 6" ducting and is 10' long

The Checker is the most popular pH meter in the world with over 1 million meters used since its introduction in 1991

* Large square foot coverage and application

13 15/16 x 29 15/16 x 3/4 (13.94 x 29.94 x 0.75) Pure Green Eco-Friendly AC Furnace Air Filters 6 Pack food-&-water-storage Designed specifically for use withPure Green Eco Friendly AC Furnace Air Filters by Nordic Pure are made from an environmentally responsible non woven, high loft, antimicrobial filter media. The MERV 6 rating has a lower pressure drop, minimizing energy consumption while maintaining a high dust holding capacity. As we continue to keep our eyes on media technology advances, our Pure Green media will be changing its appearance. Please expect the same quality and performance you have