Hy-Pro DFE rated high efficiency glass media element upgrades are field proven to improve single pass ISO codes through main bearing filter duplexes and also to lower overall lube system ISO codes. Hy-Pro lube specific lube elements are designed to optimize life of bearing lube elements where the combination of high viscosity, high flow and low terminal ΔP alarm settings (15 psi / 1 bar) require the lowest clean element pressure drop and high efficiency.