20x20x1 Pure Green Eco-Friendly AC Furnace Air Filters 6 Pack ventilation and ducting 48 Small tear packet samples

48 Small tear packet samples

There is an integrated amplifier and built-in temperature sensor for automatically temperature compensated pH readings

Hermetically sealed to maintain freshness

Adapters are cETLus listed as well as IP66 rated for commercial use

How many should I order for a large garden

20x20x1 Pure Green Eco-Friendly AC Furnace Air Filters 6 Pack ventilation and ducting 48 Small tear packet samplesPure 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