Eco Four Twenty / Ongrok Extra Replacement Filters 2/pack
The personal air filter cartridges by Eco Four Twenty last up to 500 exhales, and when that time comes simply pick up one of these replacement cartridges, and you will be ready for another 500.
Easy to use
What's in the Box:
2x Air Filter Cartridges
(NOTE: Eco Four Twenty Aluminum and Ongrok Branded Lightweight ABS Plastic Filters are interchangeable - the replacement filters seem identical)
Stock # 30414