Air Cylinder Cap High quality products. Get better performance for your Piston Fillers. Models & Specs: Air Cylinder Cap AA=1/8 - 11MMB=11MMC=44mmD=10mmE=30MM Air Cylinder Cap BA=1/4 - 11MMB=15MMC=50mmD=10mmE=40MM Air Cylinder Cap CA=1/4 - 11MMB=20MMC=61mmD=10mmE=50MM Air Cylinder Cap DA=3/8 - 14MMB=20MMC=74mmD=12mmE=60MM Air Cylinder Cap EA=3/8 - 14MMB=24MMC=94mmD=16mmE=70MM