ERA177P ERA177U ERA177H ERA177S ERA177C filter element for Airfilter

P is coarse pre-filtration. U is general filtration H is high performance filtration. S is high performance filtration. C Activated carbon filter. 
Quality Testing Equipment is Germany CS 0.1. 
The filter Material is Lydall 9866 fiberglass. 
Our replacement filters do not have original Logo and Package.