Am 29.11.2015 um 23:25 schrieb Troy Prideaux: I had misused these ( "any" link with a fitting image ): http://www.kiowa.co.uk/422-P00043769/MHE2-MS1H-3/2G-QS-4-Festo-Solenoid-valve ( (quick)fits 4mm tubing ) uwe