About one month ago, customer ordered filter cartridges with 3 lugs from us. At that time, they asked for samples for foam filter, cardboard frame synthetic prefilter and V-bank rigid filter. Once received the sample, they rest asssured of the quality and placed an order to us.
Well, for those filters, we have already more than 10 years` experiences. And we are certified by ISO system. Not only we use filter media with good quality, but also you can feel assured when considering our skilled workmanship, advanced production lines and strict testing before market release.