DIG B37 1/2" .600 x .700 Poly Irrigation Tubing, 500' Available in 2, 50, 100, 200, 500, and 1000 ft. Coils Contains a minimum of 2% concentrated carbon black resin antioxidant to protect the drip tubing from thermal degradation The polyethylene tubing exhibits a combination of outstanding environmental stress-cracking resistance and burst strength Use with our wide range of 1/2 in. Compression fittings Meets the demand for above or below the ground micro irrigation systems in agriculture, landscape, and residential gardening installations