hf213 - 1/14/2022 21:38 +1, Thats a good price for what that set contains. I did the same many years ago, but use mine about everyday. I bought a few plastic Plano assortment boxes from Lowes - Menards and made my adapter - cap and plugs sets. They make it easy today :-) to op: While you are at it, might as well get one for pipe thread, SAE flare, ORB too, If you guys need more time to install plugs or caps, sometimes you can use a shop vac on reservoir or system for the larger hoses-fittings to save on mess.