6" Kammer & Nut Staubschutzstopfen | U-Tite | Aluminium

Kept a spare on the truck for months and it still slides into the coupler without any grit or corrosion on the threads, which is more than I can say for some steel fittings I've used. The aluminum makes it light enough to toss in a parts box without weighing it down.

The 6-inch aluminum body feels surprisingly sturdy for the price, and the U-Tite mechanism clicks shut with a very positive lock. I use it to cap off a hose line in my workshop, and it keeps the dust out perfectly. Exactly what I needed for a clean, secure seal.

The aluminum body feels weighty and precise, and the U-Tite groove seats perfectly into my female coupler every time. Used it to seal off a line after a washdown and not a speck of grit got through.