Welcome to Defender Canada! 
Groco Replacement Pump Shaft - HT-6566 Item # 867832
Description
Features:
- Groco HT-6566 Replacement Pump Shaft with keys
- Applications: Groco EB Toilets (1963-95)
- Material: Stainless Steel
- There should be no noticeable play in handle arm (HT-3560-B)
- If there is play it is probably due to wear in the key ways of the pump shaft
- Groco recommends replacement of pump shaft and keys (HT-6566) every five (5) years, or when excessive play is detected