$54.99 1/2 Polyethylene Drip Irrigation Tubing 100' (.600 ID x .700 OD) - Walmart.com - Walmart.com
Rain Bird Polyethylene Drip Irrigation Emitter Tubing 1/2 in. x 100 ft. L - Ace Hardware
Orbit DripLock 1/2 Drip Irrigation Tubing Coupling Micro Dripper Line Fitting - Walmart.com 
