Offering Low and high density Polyethylene Tube in select sizes and colors. Choose .25″, .375″, .50″, or .625″ OD sizes in 100 foot spools. Toboa Energy Resources offers polyethylene tubing in three colors black, blue and red to define almost any application. Sold in 100 foot spools this tubing is ready for any water project great for softeners, RO or wherever polyethylene tubing is required. Linear low density polyethylene tubing is ideal for applications requiring low-temperature flexibility and durability. LLDPE tubing is widely used in transporting air, water and chemicals.