Ordering Description Product number Description: Exaton Ni60 LFe 4.0x350 1/2VP Product number: 91154030G0 Description: Exaton Ni60 LFe 3.2x350 1/4VP Product number: 91153230L0 Description: Exaton Ni60 LFe 2.5x300 1/4VP Product number: 91152520L0