Shop-Vac Wet Dry Vac Handle Grip Hose Attachment End Coupling Wet Dry Vac Canister Vacuum Cleaner 1 1/4" hose Attachment end coupling. This coupling is 1 1/8" od and fits 1 1/4" hoses. 1 1/8" both ends, black plastic, curved handle 88-1331-68 Hose Attachment End Coupling