Ordering Description Product number Description: OK 74.78 2.5x350mm 1/4 VP Product number: 74782530K0 Description: OK 74.78 3.2x450mm 1/2 VP Product number: 74783240G0 Description: OK 74.78 4.0x450mm 3/4 VP Product number: 74784040V0 Description: OK 74.78 5.0x450mm 3/4 VP Product number: 74785040V0