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A lot of different brands out there. Commonly called push lock, push to lock, push connect , or stab fittings. Yes, you want the DOT fittings as both are made, same rules apply. Common non DOT fitting on the left, DOT fitting on the right.

They cost more, but push connect fittings are well worth it, in my opinion.No wrenches necessary, able to pull back off and reusable. Tees can be use in conjunction with a short piece of line as a cap as well.