Purchased in 2022. These filters are currently in sealed packs (under preservation).
Filter endcaps: arrow one side, double O-ring (222) on the other. 2.5"x 40"
Filter Media: Spun-bonded polypropylene
Support Core: 4 mm thick polypropylene for enhanced strength and temperature resilience
Micron Ratings:  5 µm
Outer Diameter: 63 mm; Inner Diameter: 28 mm
Quantity available:  19,215 Filters
15 Filter per Box. Filters are packed in boxes – 15 units in each box and boxes are packed in crates. 
Box Weight (40’’): 16 Kg per box (≈1.07 kg per cartridge)