Automotive Fiber union / loopback connectors needed I need a to union or loop back some Saab fiber plastic diameter is OD 3mm on the male and 4mm on the female. I need to union two of the plastic diameter OD 3mm. Or I need a loop-back connector from two parallel same direction plastic diameter OD 3mm, the center to center spacing is 6mm. I can send photos if you provide an ftp site access or email address. Show More