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MSR Hyperflow Microfilter Prefilter Replacement

Item #CAS0500|7 in Stock – Ships Wicked Fast

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MSR Hyperflow Microfilter Prefilter Replacement

Replace your worn out or misplaced Hyperflow prefilter with the MSR Hyperflow Microfilter Prefilter Replacement. This handy accessory removes large particles and gunk before the water reaches your filter, increasing its lifespan and your efficiency. This replacement kit includes a prefilter bag and a new hose, and packs up for compact carrying when you have limited space.

Bottom Line: Before your filter, prefilter.

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Keeps the Gunk Out fo Shizzle

By: Matt Hart
November 3, 2008

it's great. the hyperflow is awesome. it's light and super fast at pumping mass quantities of water. this replacement works great, just like the brand new one you got with the filter. it makes it so the filter can do it's job on the other nasties and not worry about the swampy muck.

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hyperflow

By: Scott Nedved
April 25, 2009

Well this filter may have its place but we tested
in 2008 at glacier . We talked to the MSR rep.
at the California outdoor show and he went through
the steps of backwashing the unit. Well we could not get the filter to backwasher at all, and after 3 days it was clogged.

It may be light but I'am not interested in taking the unit apart to switch the valves for back washing.

After returning from Glacier I called the rep. and he said they had some bad filter cartridges .

I'am going to continue to carry my 15 oz. First need water filter that has never failed yet.

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					<p>
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<br /><span class="cpi_date">${display_date}</span>
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					<input type="hidden" name="content_id" value="${id}" />
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					<p>
						Was this helpful?
						${helpful_html}
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				<p class="image_options">
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					<p class="cpi_options">
						<div class="comment_summary" id=${comment.comment_count}>
							  <h4 class="thread_info">
								  <a href="#" onclick="BCNTRY.wall.PDP.toggle_comments_onclick(this, 'cpi', '${id}');return false;" class="comments_toggler">${comment.comment_count} {if comment.comment_count == 1} Comment {else} Comments {/if}</a> 
								  Last Comment: <span class="cpi_date">${comment.latest_comment_submit_dt}</span>
								  by: <a class="user_profile_link"  href="${comment.profile_url}">${comment.latest_comment_user_display_name}</a>
							  </h4>
						 </div>
						 <div class="threaded_comments_cpi"></div>
					</p>
				{/if}
				<div class="error_message"></div>
				{if comment.solicit_comment_display == 'normal'}
					<div class="inline_solicitation">
					  <div class="comment_container">
							<form class="provide_comment_form" name="comment_cpi" method="POST" enctype="multipart/form-data" action="https://www.backcountry.com/store/content_upload/cpicomment/CAS0500/${id}" >
								<input type="hidden" name="content_id" value="${id}" />
								<input type="hidden" name="content_type" value="cpi" />
								<div class="error_message"></div>
								<div class="textarea_container"> 
									<textarea class="comment_content" name="comment_content" onkeyup="BCNTRY.wall.PDP.comment_content_onkeyup(this.form)" onfocus="BCNTRY.wall.PDP.comment_content_onfocus(this.form)">Write your comment here...</textarea>
									<input type="hidden" name="comment_content_default" value="Write your comment here..." /> 
								</div> 
								<input type="image" src="http://content.backcountry.com/images/bcs/buttons/comment_it.gif" alt="Submit Comment"  class="answer_it_button" /> 
								<span class="comment_chars"></span>
							</form>
						</div> 
					</div>
				{elseif comment.solicit_comment_display == 'collapsed'}
					<div id="comment_solicit" class="comment_solicit">
						<p><a href="http://www.backcountry.com/store/content_upload/cpicomment/CAS0500/" rel="nofollow">Comment on ${user.display_name}'s photo ></a></p>
					</div>
				{/if}
		 	</div> 
		 	<div class="error_message"></div>
		</div> 
	{elseif display == 'flagged'}
		<div class="cpi_item">
			<div class="cpi_text">
				<p class="user_flagged_text">
					<span onclick="BCNTRY.wall.PDP.flag_cpi_show_onclick(this, '${id}')">
						<a href="#" onclick="return false;" rel="nofollow">${flagged_description}</a>
					</span>
				</p>
			</div>
			{if message}<div class="cpi_flagged confirmation">${message}</div>{/if}
		</div>
	{/if}

<div class="flag_container">
		<form class="flag_as_offensive" method="post" onsubmit="return false;" action="#">
			{if content_type == 'comment'}
				<input type="hidden" name="comment_id" value="${comment_id}"/>
			{else}
				{if content_type == 'answer'}
					<input type="hidden" name="question_id" value="${question_id}"/>
				{else}
					<input type="hidden" name="question_id" value="${content_id}"/>
				{/if}
				
				<input type="hidden" name="answer_id" value="${content_id}"/>
				<input type="hidden" name="cpi_id"    value="${content_id}"/>
				<input type="hidden" name="review_id" value="${content_id}"/>
			{/if}
			<span class="flag_close" onclick="BCNTRY.wall.PDP.close_dialog_onclick(this)"><a href="#" onclick="return false;" rel="nofollow"><img src="http://content.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>
			<p>
				This post was:
				<input type="text" name="flag_description" />
				(Optional)
			</p>
			<div class="clearb"></div>
			{if is_from_carousel}
				<input class="save_answer_button" onclick="BCNTRY.wall.PDP.flag_carousel_${content_type}_submit_onclick(this.form)" src="http://content.backcountry.com/images/bcs/buttons/save_qa.gif" type="image" />
			{else}
				<input class="save_answer_button" onclick="BCNTRY.wall.PDP.flag_${content_type}_submit_onclick(this.form)" src="http://content.backcountry.com/images/bcs/buttons/save_qa.gif" type="image" />
			{/if}
		</form>
	</div>

<div class="review" id="review_${review_id}">
		<div>
			{if image_url_small}
				<div class="content_image">
                    <a class="cpi_zoom" rel="nofollow" href="${image_url_large}" onclick="track_pdp_user_image_zoom();return hs.expand(this);">
						${image_el_small}
					</a>
					<span class="zoom_link" onclick="track_pdp_user_image_zoom();return BCNTRY.product_wall_image_zoom(this)"><a class="cpi_zoom" rel="nofollow" href="${image_url_large}" onclick="return false;">Zoom</a></span>
					</a>
				</div>
			{/if}
			${review_rank_img}
			<h3><a href="${review_link}">${title}</a></h3>
            <p>By: <a class="user_profile_link" href="${review_profile_link}"> ${review_display_name} </a>
                   <a class="user_profile_link" href="${review_profile_link}"><img class="minipro_icon" src="http://content.backcountry.com/images/bcs/profile/minipro_icon.gif" alt="" /></a>
				   {if user.badges}
					   	{for badge in user.badges}
							${badge.image_el}
						{/for}
					{/if}
                <br/><span class="review_date">${review_date}</span></p>			
            <div class="review_text">
            <p>${review_comments}</p>
            </div>
            <form class="helpfulness_form">
                <input type="hidden" name="content_type" value="review" />
                <input type="hidden" name="content_id" value="${review_id}" />
                <input type="hidden" name="is_helpful" value="" />
                <p>
                    Was this helpful?
                    ${helpful_html}
                </p>
				<p class="review_options">
					<span class="flag_link" onclick="BCNTRY.wall.PDP.flag_review_onclick(this, '${review_id}')"><a href="#" onclick="return false;" rel="nofollow">Flag</a></span>
       	               <span class="improve_link" onclick="window.location='${editReviewURL}'">
              		       	<a href="#" onclick="return false;" rel="nofollow">Tweak This</a>
       	       	       </span>
     					<span class="edit_img_link" onclick="BCNTRY.wall.PDP.inactivate_review_submit_onclick(this, '${review_id}')">
				   		<a href="#" onclick="return false;" rel="nofollow">Delete Review</a>
					</span>
				</p>
				<div class="confirmation">Thanks for the review, ${review_display_name}.</div>
           </form>
		</div>
	</div>

{if display == 'normal'}
		<input type="hidden" id="review_${review_id}_title" value="${title}" />
		<input type="hidden" id="review_${review_id}_rank" value="${rank}" />
		<input type="hidden" id="review_${review_id}_body" value="${body}" />
		<input type="hidden" id="review_${review_id}_img_url" value="${image_url_small}" />
		${rank_image}
		<div class="review_item">
			{if image_url_small}
				<div class="content_image">
                    <a class="cpi_zoom" rel="nofollow" href="${image_url_large}" onclick="track_pdp_user_image_zoom();return hs.expand(this);">
						${image_el_small}
					</a>
					<span class="zoom_link" onclick="track_pdp_user_image_zoom();return BCNTRY.product_wall_image_zoom(this)"><a class="cpi_zoom" rel="nofollow" href="${image_url_large}" onclick="return false;">Zoom</a></span>
					</a>
				</div>
			{/if}
			<div class="content_right{if ! image_url_small} expanded{/if}">
				<h3><a href="${review_link}">${title}</a></h3>
				<p>By: <a class="user_profile_link" href="${user.profile_url}">${user.display_name}</a> 
					<a class="user_profile_link" href="${user.profile_url}"><img class="minipro_icon" src="http://content.backcountry.com/images/bcs/profile/minipro_icon.gif" alt="" /></a>
					{if user.badges}
						{for badge in user.badges}
							${badge.image_el}
						{/for}
					{/if}
					<br /><span class="review_date">${date}</span>
				</p>
				<div class="review_text"><p>${body}</p></div>

<form class="helpfulness_form">
						<input type="hidden" name="content_type" value="review" />
						<input type="hidden" name="content_id" value="${review_id}" />
						<input type="hidden" name="is_helpful" value="" />
					<p>
						Was this helpful?
						${helpful_html}
					</p>
				</form>
				<p class="review_options">
					{if flagged}
						<span class="flag_link" onclick="BCNTRY.wall.PDP.unflag_review_onclick(this, '${review_id}')"><a href="#" onclick="return false;" rel="nofollow">Un-Flag</a></span>
					{else}
						<span class="flag_link" onclick="BCNTRY.wall.PDP.flag_review_onclick(this, '${review_id}')"><a href="#" onclick="return false;" rel="nofollow">Flag</a></span>
					{/if}

{if owned_by_current_user}
							<span class="improve_link" onclick="BCNTRY.wall.PDP.edit_review_onclick(this, ${review_id})">
								<a href="#" onclick="return false;" rel="nofollow">Tweak This</a>
							</span>
							<span class="edit_img_link" onclick="BCNTRY.wall.PDP.inactivate_review_submit_onclick(this, '${review_id}')">
							<a href="#" onclick="return false;" rel="nofollow">Delete Review</a>
						</span>
					{/if}
				</p>
			{if message}<div class="review_flagged confirmation">${message}</div>{/if}
			<div class="error_message"></div>
		</div>
		</div> 
		<div class="the_comments">
		{if comment.comment_count > 0}
			<div class="comment_summary" id=${comment.comment_count}>
				  <h4 class="thread_info">
					  <a href="#" onclick="BCNTRY.wall.PDP.toggle_comments_onclick(this, 'review', '${review_id}');return false;" class="comments_toggler">${comment.comment_count} {if comment.comment_count == 1} Comment {else} Comments {/if}</a> 
					  Last Comment: <span class="review_date">${comment.latest_comment_submit_dt}</span>  
					  by: <a class="user_profile_link"  href="${comment.profile_url}">${comment.latest_comment_user_display_name}</a>
				  </h4>
			 </div>
		{else}
			<div class="comment_summary" id=0></div>
		{/if}
			 <div class="threaded_comments_review"></div>
		{if comment.solicit_comment_display == 'normal'}
			<div class="inline_solicitation">
			  <div class="comment_container">
					<form class="provide_comment_form" name="comment_review" method="POST" enctype="multipart/form-data"  action="https://www.backcountry.com/store/content_upload/reviewcomment/CAS0500/${review_id}">
						<input type="hidden" name="content_id" value="${review_id}" />
						<input type="hidden" name="content_type" value="review" />
						<div class="error_message"></div>
						<div class="textarea_container"> 
							<textarea class="comment_content" name="comment_content" onkeyup="BCNTRY.wall.PDP.comment_content_onkeyup(this.form)" onfocus="BCNTRY.wall.PDP.comment_content_onfocus(this.form)">Write your comment here...</textarea>
							<input type="hidden" name="comment_content_default" value="Write your comment here..." /> 
						</div> 
						<input type="image" src="http://content.backcountry.com/images/bcs/buttons/comment_it.gif" alt="Submit Comment" class="answer_it_button" /> 
						<span class="comment_chars"></span>
					</form>
				</div> 
			</div>
			<div class="clearb"></div>
		{elseif comment.solicit_comment_display == 'collapsed'}
			<div id="comment_solicit" class="comment_solicit">
				<p><a href="http://www.backcountry.com/store/content_upload/reviewcomment/CAS0500/" rel="nofollow">Comment on ${user.display_name}'s review ></a></p>
			</div>
		{/if}
		</div> 
	{elseif display == 'flagged'}
		<div class="review_item">
			<div class="review_text">
				<p class="user_flagged_text">
					<span onclick="BCNTRY.wall.PDP.view_flagged_review_onclick(this, '${review_id}')">
						<a href="#" onclick="return false;" rel="nofollow">${flagged_description}</a>
					</span>	
				</p>
			</div>
			{if message}<div class="review_flagged confirmation">${message}</div>{/if}
		</div>
	{/if}

{if display == 'normal'}
 		<div class="comment_info">
			<p>By: <a class="user_profile_link" href="${user.profile_url}">${user.display_name}</a> 
				<a class="user_profile_link" href="${user.profile_url}"><img class="minipro_icon" src="http://content.backcountry.com/images/bcs/profile/minipro_icon.gif" alt="" /></a>
				{if user.badges}
					{for badge in user.badges}
						${badge.image_el}
					{/for}
				{/if}
				<br />
				<span class="comment_date">${date}</span>
			</p>
		</div>
		<div class="comment_content">
		<div class="comment_text"><p>${body}</p></div>
	
		<p class="comment_options">
			{if flagged}
				<span class="flag_link" onclick="BCNTRY.wall.PDP.unflag_comment_onclick(this,'${id}')"><a href="#" onclick="return false;" rel="nofollow">Un-Flag</a></span>
			{else}
				<span class="flag_link" onclick="BCNTRY.wall.PDP.flag_comment_onclick(this, '${id}')"><a href="#" onclick="return false;" rel="nofollow">Flag</a></span>
			{/if}
			<div class="error_message"></div>
		</p>
		
		<form class="helpfulness_form">
			<input type="hidden" name="content_type" value="comment" />
			<input type="hidden" name="content_id" value="${id}" />
		   	<input type="hidden" name="is_helpful" value="" />
			<p>
           		Was this helpful?
	           	${helpful_html}
    	  	</p>
		</form>

</div>
		{if message}<div class="comment_flagged confirmation">${message}</div>{/if}
	{elseif display == 'flagged'}
			<div class="comment_text">
				<p class="user_flagged_text">
					<span onclick="BCNTRY.wall.PDP.view_flagged_comment_onclick(this, '${id}')">
						<a href="#" onclick="return false;" rel="nofollow">${flagged_description}</a>
					</span>
				</p>
			</div>
			<div class="error_message"></div>
			{if message}<div class="comment_flagged confirmation">${message}</div>{/if}
	{/if}

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