We have an MSR Miniworks EX.

Works well and is light. It does seem to have a lot of parts but so far haven't lost anything. I like the way it does screw right onto our hydration packs so not much mess. I have found though that I tend to not bother with it most of the time because I'm rarely in spots that I think I need to use it. On prairie hunts it always seems your not that far from the truck that you need to set up camp so there's plenty of water there and in the mountains, at least where I tend to hunt, the water is fine right out of the creeks and lakes. Makes the wife happy when we camp or hike so I guess it makes me happy.

Either way I'd recommend this one.

Quote from: sheepguide on June 10, 2011, 11:49:34 PM

Just wondering what everyone packs when in the field for a portable water filtration system. Going to by one when I get on days off so just wondering what everyone is using.
SG

I thought filtering it through the teeth worked pretty good, gets the big chunks out anyways. 

X2. Lol

I use a UV light when I'm down stream of any camp, Just teeth in the high country.

http://www.mec.ca/Products/product_detail.jsp?PRODUCT%3C%3Eprd_id=845524442634647&FOLDER%3C%3Efolder_id=2534374302696751

I have used the tablets, a couple of different filter including one built right into the water bottle, but on a week long sheep hunt saw a buddy with a  MSR HYPERFLOW MICROFILTER - we all used his for ease of use and volume.

Liked it so much I bought one myself.

Heres the model i use..has been good for the 3 season i have had it and the price is not bad either.  I just removed the bottle adapter and other extra to shave some weight.

http://www.katadyn.com/caen/katadyn-products/products/katadynshopconnect/katadyn-water-filters-backcountry-series-products/katadyn-hiker-pro-1/

I have an ancient MSR Miniworks. It's been good. I'm pretty sure it's had many times it's value put thru it in replacement cartridges.

The one thing I really like about it, and maybe other manufacturers do this now also, is that it screws right onto wide mouth Nalgenes or my MSR Dromedary bags. Less hands/hoses required at the side of a stream is a good thing in my books...

Yep been using the teeth filter for years. Not really worried about it just been looking at getting one. Leaning more towards the pump style for these backback trips as you can suck out of alot smaller water holes than what you can fill a water bottle in.
SG

We've used the pump style, can't remember the make or model, sorry.  Worked well, but all that pumping is time consuming.  I'm sure you can get different models with larger capacity pumps though.  If you go that route you'll want to take an extra filters.  Ours started to plug off after a few days.