View cart “Gearbox Hobby mill” has been added to your cart. Check Valve Hansen Diaphragm Kit 40mm$38.00 GST inc includes diaphragm and spring part# 10034301 Check Valve Hansen Diaphragm Kit 40mm quantity Add to cart Category: Sun Mill/Solar Mill Parts Additional information Additional information Weight 0.4 kg Related products Seal 2″ stuffing box outer $2.75 for 2″ Stuffing box outer o’ring Part# 10002500 Rod 3″ pump $121.00 Nylon for 3″ Tall Pump Drive Transfer Part# 10005854 Armature 30v to suit Rossi gearbox $359.70 for 30v motor after 2003 with front & rear bearing to suit Rossi Gearbox (Blue colour) Part# 65000051 Bolt 70mm for Guide Wheel Assembly $7.70 for Guide Wheel Assembly 3″/75mm pump, with machined head Part# 10042000