Check the listing for details. KOMOS® Stainless Steel S-Style Keg Coupler with 8 mm Duotight Adapters. Condition: New. Listed at 56.00 USD. With Duotight adapters you can take your draft system into the 21st century with EVABarrier draft line. This double walled tubing offers superior protection against oxidation, CO2 loss and microbial growth. Plus, it's BPA and PVC free! EVA tubing is the future of draft line for professional applications, and now you can rig up your home system with the same first-class tubing. 4 mm x 8 mm EVABarrier is our recommended size for short beer lines in the 5-6 ft. range. 5 mm x 8 mm EVABarrier is recommended for longer beer lines in the 10-12 ft. range. The KOMOS S-style coupler for European kegs can also be purchased bare if you prefer a different connection style. S-style sanke couplerStainless bodyStainless probePRV rated to 4.5 BAR (65 psi)