$55.99 DIG 1/2 in. (.700 O.D.) x 500 ft. Poly Drip Irrigation Tubing-B37 - The Home Depot
Rain Bird 1/2-in PVC Drip irrigation coupling in the Drip Irrigation Fittings department at 
1/2 Polyethylene Drip Irrigation Tubing 100' (.600 ID x .700 OD) - Walmart.com - Walmart.com
