DOT Fittings are Alkon's flagship product; available in thousands of standard and custom configurations, all with the same premium quality and performance. Alkon fittings have a positive seal with more tube support area beyond the O-ring than competing products. This compensates for bias-cut tubing, which will cut assembly time drastically. This, in combination with a floating tube support, provides great leak-free performance in any application. Fixed elbows and tees are the utmost in economy, while swivel elbows and tees provide easier close center-line installation with no orientation problems.