Home > Camp/Hike > Water Treatment > Water Purification > MSR Sweetwater Purifier System

The North Face - Killer deals up to 50% off.

Iodine Free

MSR Sweetwater Purifier System

Item #CAS0408|Out of Stock

Temporarily Out of Stock

Don't get too bummed. This item is on the way and will be available for purchase as soon as it rolls into the warehouse.

View 16 Other Water Purification >

$79.90

4 Reviews - Testify

Q & A | Ask away, Sherlock.

100% Guaranteed
closeUnconditional 100% Guarantee
We guarantee complete satisfaction and an unlimited lifetime warranty. If at any time - now, next month, in 30 years - you're not 100% satisfied, send your gear back for a full refund. No questions asked.
Need help returning an item? - Click Here close
Global Shipping Info
closeBrand Notice

Due to contracts with the following brands, we are unable to ship any of their products outside the US. more...

Int'l Shipping

Backcountry.com uses UPS Worldwide Express or Worldwide Expedited for all shipping outside the United States. We have found this method to be quick, secure, and cost effective.
close
Pass It On

MSR Sweetwater Purifier System

MSR's SweetWater Purifier System gives you added protection against bacteria, protozoa, and viruses. This backcountry kit includes a SweetWater Microfilter, purifying solution, and a Platypus 2L reservoir. Simply pump the water through the SweetWater purifier, then add five drops of the purifier solution per liter and wait five minutes for the purification process to complete. MSR's water Purifier Solution inactivates 99.99 percent of waterborne viruses, bacteria, and common protozoan parasites, so you can avoid spending your camping or traveling expedition doubled over in your tent. The Platypus 2L bottle (included) connects to the SweetWater Filter, and the filter's lever-action pump handle makes pumping easy on your arms.

Bottom Line: Whether you're hiking up mountains in Peru or camping closer to home, MSR's SweetWater Purifier System helps you say bye-bye to viri.

Product Wall

Your place to talk with other Gear Freaks

Others are looking at this product, too. So ask 'em questions. Give your insight. Get street cred.

Hi, throw your review on the Product Wall to show your Gear-telligence.

Hi, got a question? Ask on the Product Wall.

excellent system!!!

By: melndave (12)
August 14, 2007

the pump is user friendly, it has a great pump action, and was less effort then our friends pump. the system is easy to set up (follow the instructions), easy to use and easy to clean. it comes with a part to use with nalgene bottles as well, but the platapus water bottles are great. they have no taste, like some other brands on the market. the bottles stand up by themselves too. we used this system for a overnight hike into the sawtooths and were very impressed. cant wait to really test it out in south america!!

Was this helpful? (2) (0)

A Very Good Choice

By: A.R.M. (10)
August 2, 2007

I've been using the Sweetwater system for three years and I have no complaints. It's easy to pump and the filter element is easily cleanable with the included brush. Adapters for some common water containers are included for a leak-free connection while pumping. I screw the adapter directly onto my Platypus containers and don't worry if they tip over. The filter element has a foolproof mesh indicator to let you know when it should be replaced (I just replaced mine for the first time this year. I use the optional chlorine based Viral Stop if the source water is questionable, but some would say it is unnecessary here in the U.S. BTW, the Sweetwater was rated highest on a thorough U.S. Army test of portable, commercially available filter/purifier systems (when used in conjunction with Viral Stop).

Was this helpful? (3) (0)

very good system

By: garrett (13)
June 5, 2007

being new to the world of backpacking, i purchased this purifier system for my first trip. we used it every day, pumping probably 15L total, and it was a great working pump - it worked quickly and efficiently. i only had to clean it out three times, but despite the inconvenience, i guess it's better than drinking the crap i had to scrape out of the filter. folds up nicely, decently lightweight. the platypus included makes everything better - and the convenient hose connections make hooking the filter straight to your water bottle quite easy - raising the efficiency of the system (especially if you were alone and had no one to hold the bottle while you pumped). i never had the need to use the purifier drops. highly recommended - but do research before you buy to see if you really need a filter - in some places chemical treatment is a much lighter, more affordable route.

Was this helpful? (5) (1)

{if display == 'flagged'}
		<div class="question">
			<div class="question_text"><span onclick="BCOUNT.wall.PDP.view_flagged_question_onclick(this, '${question_id}')"><a href="#" onclick="return false;">Question flagged.  Click here to view</a></span></div>
			<div class="question_by">
				<p>By <a href="${user.profile_url}">${user.display_name} (${user.post_count})</a><br/>${date}</p>
			</div>
			{if messaging.question}<div class="qanda_question confirmation">${messaging.question}</div>{/if}
			{if messaging.answer}<div class="qanda_answer confirmation">${messaging.answer}</div>{/if}
		</div>
	{else}
	<div class="question">
		<h3>{if answer}<a href="${qanda_link}">{/if}${title}{if answer}</a>{/if}</h3>
		<div class="question_text"><p>${body}</p></div>
		<div class="question_by">
			<p>By <a href="${user.profile_url}">${user.display_name} (${user.post_count})</a><br/>${date}</p>
		</div>
		<p class="question_options">
			{if user.id == curr_user.id}<span class="editq_link"><span onclick="BCOUNT.wall.PDP.edit_question_onclick(this, '${question_id}')"><a href="#" onclick="return false;">Tweak This</a></span></span>{/if} 
			{if flagged}
			<span class="flag_link"><span onclick="BCOUNT.wall.PDP.unflag_question_onclick(this, '${question_id}')"><a href="#" onclick="return false;">Un-Flag</a></span></span>
			<div class="error_message"></div>
			{else}
			<span class="flag_link"><span onclick="BCOUNT.wall.PDP.flag_question_onclick(this, '${question_id}')"><a href="#" onclick="return false;">Flag</a></span></span>
			{/if}
		</p>
		{if messaging.question}<div class="qanda_question confirmation">${messaging.question}</div>{/if}
	</div>
	<div class="answer">
		{if answer != null}
			{if answer.display == 'flagged'}
				<div class="answer_text"><span onclick="BCOUNT.wall.PDP.view_flagged_question_onclick(this, '${question_id}')"><a href="#" onclick="return false;">Answer flagged.  Click here to view</a></span></div>
				<div class="answer_info">
					<p>By: ${answer.display_users}<br />${answer.date}</p>
				</div>
			{else}
				<div class="answer_text"><p>${answer.body}</p></div>
				<div class="answer_info">
					<p>By: ${answer.display_users}<br />${answer.date}</p>
				</div>
				<p class="answer_options">
					<span class="improve_link"><span onclick="BCOUNT.wall.PDP.improve_answer_onclick(this, '${question_id}')"><a href="#" onclick="return false;">Tweak This</a></span></span>
					{if answer.flagged}
						<span class="flag_link"><span onclick="BCOUNT.wall.PDP.unflag_answer_onclick(this, '${question_id}')"><a href="#" onclick="return false;">Un-Flag</a></span></span>
                        <div class="error_message"></div>
					{else}
						<span class="flag_link"><span onclick="BCOUNT.wall.PDP.flag_answer_onclick(this, '${question_id}')"><a href="#" onclick="return false;">Flag</a></span></span>
					{/if}
				</p>
			{/if}
			{if messaging.answer}<div class="qanda_answer confirmation">${messaging.answer}</div>{/if}
		{else}
  		<div class="answer_container">
  			<form class="provide_answer_form" method="post" onsubmit="return false;" action="#">
  				<input type="hidden" name="question_id" value="${question_id}" />
  				<h3>Got an answer for ${user.display_name}?</h3>
  				<div class="error_message"></div>
  				<div class="textarea_container">
    				<textarea name="answer_content" onkeyup="BCOUNT.wall.PDP.answer_content_onkeyup(this.form)" onfocus="BCOUNT.wall.PDP.answer_content_onfocus(this)">Take a stab.</textarea>
    		  </div>
  				<input type="image" src="http://static.backcountry.com/images/bcs/buttons/answer_it.gif" alt="Submit Answer" onclick="BCOUNT.wall.PDP.answer_question_onclick(this.form)" class="answer_it_button" />
  				<span class="answer_chars"></span>
  			</form>
  		</div>
		{/if}
	</div>
	{/if}

<div class="flag_container">
		<form class="flag_as_offensive" method="post" onsubmit="return false;" action="#">
			<input type="hidden" name="question_id" value="${question_id}"/>
			<span class="flag_close" onclick="BCOUNT.wall.PDP.close_dialog_onclick(this)"><a href="#" onclick="return false;"><img src="http://static.backcountry.com/images/bcs/pdp/flag_close.gif" alt="Close the flagging form" class="flag_close"/></a></span>
			<h4>Something rub you the wrong way?</h4>
			<p>Thanks for pointing it out. We'll send it immediately to our clean up crew. If you don't mind pointing us in the right direction...</p>
			<div class="error_message"></div>
			<h5>This post was:</h5>
			<p>
				
				<span><input type="checkbox" name="flag" value="1" /> Offensive</span>
				
				<span><input type="checkbox" name="flag" value="2" /> Spam</span>
				
				<span><input type="checkbox" name="flag" value="3" /> Miscategorized</span>
				
				<span><input type="checkbox" name="flag" value="4" /> Duplicate</span>
				
			</p>
			<input class="save_question" src="http://static.backcountry.com/images/bcs/buttons/save_qa.gif" type="image" onclick="BCOUNT.wall.PDP.flag_question_submit_onclick(this.parentNode)" />
		</form>
	</div>

<h4>Something rub you the wrong way?</h4>
			<p>Thanks for pointing it out.</p>
			<div class="error_message"></div>
			<h4>Edit this post yourself:</h4>
			<div class="textarea_container">
			  <textarea name="answer_content" onkeyup="BCOUNT.wall.PDP.answer_content_onkeyup(this.form)" onfocus="BCOUNT.wall.PDP.answer_content_onfocus(this)">${content}</textarea>
		  </div>
			<span class="answer_chars"></span>

<h5 id="flag_edit">Or... let others do the dirty work.</h5>
			<p>This post was:</p>
			<p>
				
				<span><input type="checkbox" name="flag" value="1" /> Offensive</span>
				
				<span><input type="checkbox" name="flag" value="2" /> Spam</span>
				
				<span><input type="checkbox" name="flag" value="3" /> Miscategorized</span>
				
				<span><input type="checkbox" name="flag" value="4" /> Duplicate</span>
				
			</p>
			<div class="clearb"></div>

<form name="rev${review_id}" id="rev${review_id}" method="post" action="http://www.backcountry.com/store/CAS0408/Sweetwater-Purifier-System.html">
		<input type="hidden" value="${review_id}" name="review_id" />
		<input type="hidden" value="${link_id}" name="link_id" />
		<input type="hidden" value="" name="helpful_review" />
		${rank_image}
		<h3><a href="${review_link}">${review_title}</a></h3>
		<p>By: <a href="${user.profile_url}">${user.display_name} (${user.post_count})</a><br /><span class="review_date">${date}</span></p>
		<div class="review_text"><p>${body}</p></div>
		<div class="review_helpfulness">
		<p>Was this helpful? <a href="#" onclick="readReview('rev${review_id}', true, '${link_id}'); return false;"><img src="http://static.backcountry.com/images/bcs/pdp/thumbs_up.gif" alt="Yes" /></a> (${helpful_count}) <a href="#" onclick="readReview('rev${review_id}', false, '${link_id}'); return false;"><img src="http://static.backcountry.com/images/bcs/pdp/thumbs_down.gif" alt="No" /></a> (${unhelpful_count})</p>
		</div>
	</form>

Tech Specs:

Purifying Element:	Chlorine-based solution
Purification Rate:	[Pump] 1.25L / min; [Solution] 1L / 5min
Volume:	1L / 5 drops
Weight:	14oz (396g)
Recommended Use:	Backpack, camping, vacationing in developing countries
Manufacturer Warranty:	Lifetime

You might also dig...

MSR SweetWater Purifier Solution

$9.90

Katadyn Exstream Purifier Bottle

$40.46

Hydro Photon Auto Adapter for SteriPEN Solar Charger

$11.66

Clothing

Gear

Accessories

MSR Sweetwater Purifier System

Temporarily Out of Stock

MSR Sweetwater Purifier System

Product Wall

excellent system!!!

Hey, speak up. Others want to hear your opinion.

Confused? Somebody out there knows the answer.

A Very Good Choice

swetwater purifier system

very good system

Tech Specs:

You might also dig...