Can’t decide which LiNK to get? Here’s a way to get both and save money!! The LiNK Pack consists of a LiNK v1 and a v2. Whether you need a long-reach WPA for your center-mounted ground stem, or you have an angled intake, the v1 can wear many hats. The v2 is a more direct connection for side-mounted ground joint that is straight up and down.