DIG B38500P 1/4" Poly Micro Tube, 500' Available in 50', 100', and 500 foot coils Contains a minimum of 2% concentrated carbon black resin antioxidant to protect the drip tubing from thermal degradation The polyethylene micro tubing exhibits outstanding environmental stress-cracking resistance and burst strength Use with 1/4 in. Barbed fittings Meets the demand of micro irrigation systems for above or below the ground layouts in agricultural, landscape, and residential gardening installations