There is a CDL store in Lanark that is now stocking 3/16 fittings. The CDL rep. there is Steve Skinner. Here is their address and hours: 40 George Street, Lanark (Ontario) K0G 1K0 Tel.: 613-259-5554 Fax.: 613-259-2409 Cell.: 613-299-7874 cdllanark@cdlinc.ca