Vinyl-Vac ASP-1105 Vinyl-Vac Unit with 4" Elbow 90 Degrees - The Vinyl-Vac is designed to circulate large amounts of air and replace vacuums for setting vinyl liners in swimming pools. This unit is designed to run for days and is super quiet. It has a powerful 600 CFM motor that does the work of any two or more shop vacs. It features a 4" suction and is available with rigid or flexible suction tubes.