{"id":4186,"date":"2017-06-30T08:30:52","date_gmt":"2017-06-30T14:30:52","guid":{"rendered":"https:\/\/astfilters.com\/aquatic-systems\/?page_id=4186"},"modified":"2025-03-04T08:19:02","modified_gmt":"2025-03-04T15:19:02","slug":"polygeyser-filters","status":"publish","type":"page","link":"https:\/\/astfilters.com\/aquatic-systems\/products\/polygeyser-filters\/","title":{"rendered":"PolyGeyser\u00ae Filters"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;Breadcrumbs&#8221; _builder_version=&#8221;4.21.0&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#363636&#8243; custom_margin=&#8221;10px||0px||false|false&#8221; custom_padding=&#8221;0px||0px||false|false&#8221; global_module=&#8221;2946&#8243; saved_tabs=&#8221;all&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;15px||15px||false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][lwp_divi_breadcrumbs font_icon=&#8221;&#x45;||divi||400&#8243; link_color=&#8221;#ffffff&#8221; separator_color=&#8221;#ffffff&#8221; current_text_color=&#8221;#ffffff&#8221; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/lwp_divi_breadcrumbs][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;20px||0px||false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<div class=\"page-header\">\n<h1 style=\"text-align: center;\">PolyGeyser<sup>\u00ae<\/sup> Bead Filters<\/h1>\n<\/div>\n<section id=\"module-1\" class=\"modules  open_content\" data-background=\"transparent\" data-bg-color=\"primary\" data-bg-color-custom=\"\" data-bg-image=\"\">\n<div class=\"mod-cont\">\n<div class=\"open_content\">\n<div class=\"row\">\n<div class=\"mod-col space-bottom20 col-sm-12\">\n<h2 style=\"text-align: center;\">Get Automatic Pneumatic Backwash for Hands-off Maintenance and Low Water Loss<\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<section id=\"module-2\" class=\"modules  open_content\" data-background=\"transparent\" data-bg-color=\"primary\" data-bg-color-custom=\"\" data-bg-image=\"\">\n<div class=\"mod-cont\">\n<div class=\"open_content\">\n<div class=\"row\">\n<div class=\"mod-col space-bottom20 col-sm-12\">\n<p>&nbsp;<\/p>\n<p>AST\u2019s patented line of PolyGeyser filters offer a breakthrough in filter technology: automatic pneumatic backwash for hands-off maintenance and low water loss. Learn more about our unique PolyGeyser filters below, or contact the AST team and we will help you choose the perfect PolyGeyser for your application.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;1_4,1_4,1_4,1_4&#8243; make_equal=&#8221;on&#8221; module_class=&#8221;ss_row_align_buttons&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; disabled_on=&#8221;on|on|on&#8221; disabled=&#8221;on&#8221; sticky_enabled=&#8221;0&#8243;][et_pb_column type=&#8221;1_4&#8243; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/astfilters.com\/aquatic-systems\/wp-content\/uploads\/sites\/3\/2015\/12\/df-e1455744256736.jpg&#8221; title_text=&#8221;df&#8221; url=&#8221;\/aquatic-systems\/products\/polygeyser-filters\/polygeyser-bead-filter\/&#8221; align=&#8221;center&#8221; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; max_height=&#8221;220px&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][et_pb_text _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<div class=\"description\" data-mh=\"fp-description\">\n<h4><strong>PolyGeyser<sup>\u00ae<\/sup> Bead Filter<\/strong><\/h4>\n<p>These filters offer superior biofiltration and an innovative automatic pneumatic backwash mechanism with no moving parts or electronics.<\/p>\n<\/div>\n<p>[\/et_pb_text][et_pb_button button_url=&#8221;\/aquatic-systems\/products\/polygeyser-filters\/polygeyser-bead-filter\/&#8221; button_text=&#8221;Learn More&#8221; button_alignment=&#8221;center&#8221; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_button][\/et_pb_column][et_pb_column type=&#8221;1_4&#8243; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/astfilters.com\/aquatic-systems\/wp-content\/uploads\/sites\/3\/2017\/06\/AST-Endurance-Filter-front-view-image2-e1478723878543.jpg&#8221; title_text=&#8221;AST-Endurance-Filter-front-view-image2-e1478723878543&#8243; url=&#8221;\/aquatic-systems\/products\/polygeyser-filters\/endurance-filters\/&#8221; align=&#8221;center&#8221; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; max_height=&#8221;220px&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][et_pb_text _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<div class=\"description\" data-mh=\"fp-description\">\n<div class=\"description\" data-mh=\"fp-description\">\n<h4><strong>AST Endurance\u2122 Filter<\/strong><\/h4>\n<p>Perfect for smaller, more compact systems and applications, these filters features automated backwash for easy maintenance.<\/p>\n<\/div>\n<\/div>\n<p>[\/et_pb_text][et_pb_button button_url=&#8221;\/aquatic-systems\/products\/polygeyser-filters\/endurance-filters\/&#8221; button_text=&#8221;Learn More&#8221; button_alignment=&#8221;center&#8221; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_button][\/et_pb_column][et_pb_column type=&#8221;1_4&#8243; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/astfilters.com\/aquatic-systems\/wp-content\/uploads\/sites\/3\/2016\/01\/LPPG-angle-e1505835317986.jpg&#8221; title_text=&#8221;LPPG angle&#8221; url=&#8221;\/aquatic-systems\/products\/polygeyser-filters\/low-profile-polygeyser-filters\/&#8221; align=&#8221;center&#8221; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; max_height=&#8221;220px&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][et_pb_text _builder_version=&#8221;4.23.4&#8243; _module_preset=&#8221;default&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;]<\/p>\n<h4><strong>Low Profile PolyGeyser<sup>\u00ae<\/sup> Filter<\/strong><strong><\/strong><\/h4>\n<p>These low profile filters are made for large volume applications. They are pump-configurable and feature airlifted technology for advanced energy savings.[\/et_pb_text][et_pb_button button_url=&#8221;\/aquatic-systems\/products\/polygeyser-filters\/low-profile-polygeyser-filters\/&#8221; button_text=&#8221;Learn More&#8221; button_alignment=&#8221;center&#8221; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_button][\/et_pb_column][et_pb_column type=&#8221;1_4&#8243; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/astfilters.com\/aquatic-systems\/wp-content\/uploads\/sites\/3\/2017\/03\/HPPG-image-front.jpg&#8221; title_text=&#8221;HPPG-image-front&#8221; url=&#8221;\/aquatic-systems\/products\/polygeyser-filters\/high-profile-polygeyser-filters\/&#8221; align=&#8221;center&#8221; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; max_height=&#8221;220px&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][et_pb_text _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<div class=\"description\" data-mh=\"fp-description\">\n<div class=\"description\" data-mh=\"fp-description\">\n<div class=\"description\" data-mh=\"fp-description\">\n<h4><strong>High Profile PolyGeyser<sup>\u00ae<\/sup> Filter<\/strong><\/h4>\n<p>These new filters feature automated backwashing and are capable of handling large volumes of water under pressure, while gently backwashing the media.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>[\/et_pb_text][et_pb_button button_url=&#8221;\/aquatic-systems\/products\/polygeyser-filters\/high-profile-polygeyser-filters\/&#8221; button_text=&#8221;Learn More&#8221; button_alignment=&#8221;center&#8221; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_button][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;1_3,1_3,1_3&#8243; make_equal=&#8221;on&#8221; module_class=&#8221;ss_row_align_buttons&#8221; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/astfilters.com\/aquatic-systems\/wp-content\/uploads\/sites\/3\/2015\/12\/df-e1455744256736.jpg&#8221; title_text=&#8221;df&#8221; url=&#8221;\/aquatic-systems\/products\/polygeyser-filters\/polygeyser-bead-filter\/&#8221; align=&#8221;center&#8221; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; max_height=&#8221;220px&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][et_pb_text _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<div class=\"description\" data-mh=\"fp-description\">\n<h4><strong>PolyGeyser<sup>\u00ae<\/sup> Bead Filter<\/strong><\/h4>\n<p>These filters offer superior biofiltration and an innovative automatic pneumatic backwash mechanism with no moving parts or electronics.<\/p>\n<\/div>\n<p>[\/et_pb_text][et_pb_button button_url=&#8221;\/aquatic-systems\/products\/polygeyser-filters\/polygeyser-bead-filter\/&#8221; button_text=&#8221;Learn More&#8221; button_alignment=&#8221;center&#8221; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_button][\/et_pb_column][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/astfilters.com\/aquatic-systems\/wp-content\/uploads\/sites\/3\/2017\/06\/AST-Endurance-Filter-front-view-image2-e1478723878543.jpg&#8221; title_text=&#8221;AST-Endurance-Filter-front-view-image2-e1478723878543&#8243; url=&#8221;\/aquatic-systems\/products\/polygeyser-filters\/endurance-filters\/&#8221; align=&#8221;center&#8221; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; max_height=&#8221;220px&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][et_pb_text _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<div class=\"description\" data-mh=\"fp-description\">\n<div class=\"description\" data-mh=\"fp-description\">\n<h4><strong>AST Endurance\u2122 Filter<\/strong><\/h4>\n<p>Perfect for smaller, more compact systems and applications, these filters features automated backwash for easy maintenance.<\/p>\n<\/div>\n<\/div>\n<p>[\/et_pb_text][et_pb_button button_url=&#8221;\/aquatic-systems\/products\/polygeyser-filters\/endurance-filters\/&#8221; button_text=&#8221;Learn More&#8221; button_alignment=&#8221;center&#8221; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_button][\/et_pb_column][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/astfilters.com\/aquatic-systems\/wp-content\/uploads\/sites\/3\/2017\/03\/HPPG-image-front.jpg&#8221; title_text=&#8221;HPPG-image-front&#8221; url=&#8221;\/aquatic-systems\/products\/polygeyser-filters\/high-profile-polygeyser-filters\/&#8221; align=&#8221;center&#8221; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; max_height=&#8221;220px&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][et_pb_text _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<div class=\"description\" data-mh=\"fp-description\">\n<div class=\"description\" data-mh=\"fp-description\">\n<div class=\"description\" data-mh=\"fp-description\">\n<h4><strong>High Profile PolyGeyser<sup>\u00ae<\/sup> Filter<\/strong><\/h4>\n<p>These new filters feature automated backwashing and are capable of handling large volumes of water under pressure, while gently backwashing the media.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>[\/et_pb_text][et_pb_button button_url=&#8221;\/aquatic-systems\/products\/polygeyser-filters\/high-profile-polygeyser-filters\/&#8221; button_text=&#8221;Learn More&#8221; button_alignment=&#8221;center&#8221; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_button][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.24.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h2 style=\"text-align: center;\">How PolyGeyser Technology Works<\/h2>\n<p>The PolyGeyser filter is a breakthrough in filter technology. It is very different from most filters on the market due to its auto-pneumatic backwash mechanism. Water enters below the bed of enhanced nitrification media and travels upward through the filtration chamber where mechanical and biological filtration take place. Simultaneously, air is introduced into the charge chamber at a constant predetermined rate to achieve the desired backwash frequency.<\/p>\n<p>Once the charge chamber has reached capacity, the pneumatic trigger fires, releasing the entrained air from the charge chamber below the bead bed. The sudden release of air from the charge chamber causes the beads to mix as the air agitates the beads. As the beads drop, the bead bed expands downward while simultaneously water rushes downward through the expanded beads, sweeping the solids away and into the air charge chamber.<\/p>\n<p>In the chamber, the solids settle out from the backwash waters and are later removed from the filter. Essentially, this type of filter recycles the backwash water while concentrating the waste products so that you have extremely low water loss while maximizing the nitrification capacity.<\/p>\n<p>Frequent backwashing has proven advantageous for optimizing the nitrification capacity of a PolyGeyser filters. Numerous gentle scrubbing cycles promotes a higher rate of nitrification by maintaining a healthy thin biofilm on the surface of the bead media. Typical backwash cycles occur every 3-6 hours.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_module=&#8221;6600&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_row _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; max_width=&#8221;900px&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; text_font_size=&#8221;20px&#8221; header_2_font=&#8221;|800|||||||&#8221; header_2_font_size=&#8221;60px&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<div class=\"et_pb_module et_pb_text et_pb_text_30  et_pb_text_align_left et_pb_bg_layout_light\">\n<div class=\"et_pb_text_inner\">\n<h2 style=\"text-align: center;\">Let&#8217;s Discuss Your Project<\/h2>\n<p style=\"text-align: center; margin-top: 35px;\">From a simple filter to a complete custom system, our engineers can help you find the perfect filtration system for your needs. Get in touch today!<\/p>\n<\/div>\n<\/div>\n<p>[\/et_pb_text][et_pb_button button_url=&#8221;\/aquatic-systems\/request-a-quote\/&#8221; button_text=&#8221;Request a No Cost Consultation&#8221; button_alignment=&#8221;center&#8221; _builder_version=&#8221;4.18.0&#8243; _module_preset=&#8221;default&#8221; custom_button=&#8221;on&#8221; button_bg_color=&#8221;gcid-3e3bfd10-2030-43aa-ac04-8e6d63f67591&#8243; button_border_color=&#8221;gcid-3e3bfd10-2030-43aa-ac04-8e6d63f67591&#8243; custom_padding=&#8221;10px|50px|10px|50px|false|false&#8221; global_colors_info=&#8221;{%22gcid-3e3bfd10-2030-43aa-ac04-8e6d63f67591%22:%91%22button_bg_color%22,%22button_border_color%22%93}&#8221;][\/et_pb_button][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p><div class=\"et_pb_module lwp_divi_breadcrumbs lwp_divi_breadcrumbs_0\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_pb_module_inner\">\n\t\t\t\t\t<div class=\"lwp-breadcrumbs\"> <span class=\"before\"><\/span> <span vocab=\"https:\/\/schema.org\/\" typeof=\"BreadcrumbList\"><span property=\"itemListElement\" typeof=\"ListItem\"><a property=\"item\" typeof=\"WebPage\" href=\"https:\/\/astfilters.com\/aquatic-systems\/\" class=\"home\"><span property=\"name\">Home<\/span><\/a><meta property=\"position\" content=\"1\"><\/span> <span class=\"separator et-pb-icon\">E<\/span> <\/span><\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div> PolyGeyser\u00ae Bead Filters Get Automatic Pneumatic Backwash for Hands-off Maintenance and Low Water Loss &nbsp; AST\u2019s patented line of PolyGeyser filters offer a breakthrough in filter technology: automatic pneumatic backwash for hands-off maintenance and low water loss. Learn more about our unique PolyGeyser filters below, or contact the AST team and we will help you choose the perfect PolyGeyser for your application. PolyGeyser\u00ae Bead Filter These filters offer superior biofiltration and an innovative automatic pneumatic backwash mechanism with no moving parts or electronics. AST Endurance\u2122 Filter Perfect for smaller, more compact systems and applications, these filters features automated backwash for easy maintenance. Low Profile PolyGeyser\u00ae Filter These low profile filters are made for large volume applications. They are pump-configurable and feature airlifted technology for advanced energy savings. High Profile PolyGeyser\u00ae Filter These new filters feature automated backwashing and are capable of handling large volumes of water under pressure, while gently backwashing the media. PolyGeyser\u00ae Bead Filter These filters offer superior biofiltration and an innovative automatic pneumatic backwash mechanism with no moving parts or electronics. AST Endurance\u2122 Filter Perfect for smaller, more compact systems and applications, these filters features automated backwash for easy [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1410,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","inline_featured_image":false,"footnotes":""},"class_list":["post-4186","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>PolyGeyser\u00ae Bead Filters: AST&#039;s Patented Biofilter Technology<\/title>\n<meta name=\"description\" content=\"AST&#039;s collection of PolyGeyser filters feature auto-pneumatic backwash &amp; excellent biofiltration. A great choice for aquaculture &amp; pond applications.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/astfilters.com\/aquatic-systems\/products\/polygeyser-filters\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PolyGeyser\u00ae Bead Filters: AST&#039;s Patented Biofilter Technology\" \/>\n<meta property=\"og:description\" content=\"AST&#039;s collection of PolyGeyser filters feature auto-pneumatic backwash &amp; excellent biofiltration. 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