Hydro Flow Vinyl Tubing Clear 3/16 in ID - 1/4 in OD by Hydro Flow Sale $2.49 SKU 10 Feet - $2.49 20 Feet - $4.49 50 Feet - $10.99 Size 10 Feet 20 Feet 50 Feet 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Buy Now Premium vinyl tubing made of excellent quality. Made in the USA. Ideal for air movement from an air pump to air stones, air discs, Aqua Lung™, Water Winds, etc.