Check Valve 40mm$52.80 Check valve 40mm used with air chamber manifold diaphragm type with screw off lid Part#10034300 Check Valve 40mm quantity Add to cart SKU: 10034300 Category: Sun Mill/Solar Mill Parts Additional information Additional information Weight .440 kg Related products Seal 2″ stuffing box lower $19.80 for 2″ Stuffing box Lower Part# 10003200 Bolt stroke bar $1.50 Connecting Crank Rod to Stroke Bar Part# 10035641 Gearbox Hobby mill $325.00 for Hobby Mill 2″/50mm Pump drive 1M tall Part# 30090110 Grease nipple $1.32 for Stuffing box 2″ & 3″ Part# 63000072