OR 28,00 x 3,50 EPDM70-EWRC72O-ring, črni, Peroxide cured, FDA 21. CFR 1.772.600, KTW, DVGW W270, UBAAlwin Höfert21-33595
OR 187,50 x 3,55 FPM80-VR1O-ring, črni, Bisphenol cured, BAM, DVGW DIN EN 549/682Alwin Höfert21-33780