http://tinyurl.com/n2fdxhw
Katif Drip Irrigation Dripper
Built-in diaphragm ensures constant flow rates along long run drip lines and in the most challenging topographical conditions
Low profile with minimum extension above the drip tubing
Protected against UV degradation
Self flushing with initial water flow to help in minimizing clogging risk
Resistant to chemicals and fertilizers used in agriculture