The Grip Shooter Pump threads onto the Canister. If you have an older metal canister they used a different pump and the piece that threads onto the canister is larger in diameter like the GSP. https://www.golfworks.com/grip-shooter-pump/p/gsp/
If you are trying to thread it onto a quart bottle of solvent, it was designed to fit a quart bottle. Only the container that comes with the kit. The container stock number is GS6CP and is shown in the link below.