Lumark - blue ones are best unless you wish to do a little more DIY building themThen get these http://www.spraytips.co.uk/index.php?url=//_--Flat-Fan-Nozzles-_/product/search.htmAnd thesehttp://www.ebay.co.uk/itm/Female-Swivel-Elbow-Push-Fit-Bsp-Threads-Swivel-Elbow-Metric-Push-in-Female-BSP-/131374402893?pt=LH_DefaultDomain_3&var=&hash=item1e96864d4d
Sorry vin pasted wrong link try this...http://www.spraytips.co.uk/_-Threaded-Flat-Fan-_/product/?pid=108795Make sure you order fft100121/8 Npt ( bsp is virtually identical )Darran