inputs.text: perfect size good design - purchased product year ago say quite happy took 2004 honday odyssey minivan 20 mpg highway 38 mpg size perfect fit inside engine area chose put front bumper front left wheel well using potassium hydroxide electrolyte no corrosion unit disassehembled clean satisfied stainless steel plates not breaking vendor able put together unit plates homemade 13plate unit takes less space skeptics trying found biggest obstacle not leaking hydrogen somewhere smallest elehement table crack somewhere hydrogen fit smallest no elehement may biggest success came stopped using black rubber gas tubing may fine gasoline suspect poreous enough hydrogen abosrbed use reinforce plastic places copper tubing others since ways test presence hydrogen leaks match filling baloon see floates come good safe way test making tubing air intake nice design good product far hho generators go