If you plan to use Speed Bleeders for the brakes and for the clutch you'll need seven of them. One for each of the front calipers, two for the rear caliper and one each for the brake and clutch master cylinders and one for the clutch slave cylinder. My '09 C14 has SB8125L bleeders installed. Either the shorter or the longer bleeders may be used. I chose the longer item as it allows a bit of extra room for the bleeder hose and adds no reasonable degree of vulnerability due to the increased length. It might be a good idea to use the shorter ones for the brake and clutch master cylinders for cosmetic reasons only.
I wholeheartedly endorse them as I have been using them for many years. I have them installed on both of my cars, on my truck and on three of my motorcycles. They greatly simplify bleeding the brakes, especially on cars and trucks. Motorcycles are very easy to bleed because one person can easily reach the master cylinders and the slave cylinders simultaneously. However, the Speed Bleeders simplify the procedure to the extent that their expense is justified.
I advise one and all to get them, they are truly a great product and worth the expense. In my opinion they should be installed by the manufacturers as standard equipment. Where you get them is up to you. I've purchased all of mine directly from Speed Bleeder with no complaints. However, I've also done business with Murph and cannot fault him either.