Superior Rune of Water
http://lmgtfy.com/?q=superior+rune+of+water
Edit: doesnt work Anyway its 690 and heals at a range of 600 and it says this on the wiki page
Cufufalating – Ranger / Part-Time Mesmer
Gunnar’s Hold
Gunnar’s Hold
What is also important to know is that healing power helps alot with it.
Its 690 like Cufu said + 0.5 x Healing power.
So lets say you have 1400 healing power thats 1390 healing x 2 in one healing spring.
So you heal everyone near you for about 2800 every 30 sec.
The first heal is caused when you place the field, the 2nd one after about 10 sec.
Combine this with two drakes which heal for another 1320 per tail swipe in the healing spring and you have good healing support + regen + vigor if specced.
(edited by Arpheus.6918)