YS-4SVA - Step Speed Head
YS-4SVS - Variable Speed Head
YS-4SIV - Inverter Variable Speed Head
YS-4KVA - Step Speed Head
YS-4KVS - Variable Speed Head
YS-4KIV - Inverter Variable Speed Head
YS-5KVA - Step Speed Head
YS-5KVS - Variable Speed Head
YS-5KIV - Inverter Variable Speed Head
YS-6KVA - Step Speed Head
YS-6KVS - Variable Speed Head
YS-6KIV - Inverter Variable Speed Head