20mm to 6mm hose inlet to be mounted in a plastic canister

cults3d

This was designed to be mounted in an old unused Opel tank which was used in the car to store the windshield liquid. Now its being used as a gasoline tank for my brother's CarbMate carburetor synchronizer. A thread M20x2,5 x 15mm screw with hexagonal head for 28mm spanner and a position for 20x3mm rubber O-ring as a seal. Exit is made as a 6mm tube with 3 cones to securely fit a ~6mm rubber gasoline hose onto it. This all goes into the plastic canister(tank) and on top of it is placed another 20x3mm O-ring and that is secured with a 28mm nut. All fits tight enough so no leakage.