Fast Tech embodies the maximum of everything: Oval dump valve for quick emptying, Anti-Splash Top, corrugated hose and ergonomic mouthpiece with ample room for bite, reducing jaw fatigue.
The Seac Fast Tech Snorkel is a rigid tube snorkel with a splash guard on the top to deflect waves away from the openning and a purge valve at the bottom with a water trap that will expel any water that does enter the snorkel.
Mouthpiece material: body in ABS with mouthpiece in silicone 
Tube material: PVC with bellows in liquid silicone