We use a clear vinyl hose from one of the big box stores... . 3/16 or 1/4" id and press it over the end of the valve and run it into a clean container... . when the air stops and the fluid is clear we stop bleeding... . do the longest line first...
Buy 12-16" of the hose and throw it away when your done... the chemicals in the brake fluid will make the hose hard and brittle...