A multi-purpose, extra heavy smooth-walled, all vinyl hose for sanitation system connections. (Head intake, head to holding tank, holding tank discharge and pump out.) Specially formulated with FDA approved and low water absorption compounds that give good resistance to odor permeation and toilet chemicals. Reinforced with hard vinyl helix for good bend radius, vacuum rating and corrosion protection. Smooth cover permits clamping without cuffs. Recommend double clamps and sealing compound for below water line connection. Temperature range -13° F - 158° F.