{"id":2227,"date":"2021-07-28T06:53:52","date_gmt":"2021-07-28T06:53:52","guid":{"rendered":"https:\/\/ancor.biz\/?post_type=product&#038;p=2227"},"modified":"2025-08-18T12:01:43","modified_gmt":"2025-08-18T04:01:43","slug":"dwyer-series-1221-flex-tube-u-tube-manometer","status":"publish","type":"product","link":"https:\/\/ancor.biz\/index.php\/product\/dwyer-series-1221-flex-tube-u-tube-manometer\/","title":{"rendered":"DWYER Series 1221 U-Tube Manometer"},"content":{"rendered":"<h1>Series 1221 Flex-Tube\u00ae U-Tube Manometer, Suitable for Pressures up to 100 psi, Better Precision<\/h1>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/ancor.biz\/index.php\/product-category\/brand\/dwyer-instruments-brand\/\">DWYER<\/a> Series 1221 U-Tube Manometer combine the inherent accuracy of the simple &#8220;U&#8221; Tube with the durability of tough, long-lasting plastic construction. These inexpensive manometers measure positive, negative and differential pressures. Columns are of .375&#8243; O.D. flexible and shatter proof clear butyrate tubing. DWYER <a href=\"https:\/\/intl.dwyer-inst.com\/Product\/Pressure\/Manometers\/Stationary\/Series1221-1222-1223?Query=1223#features\">Series 1221<\/a> U-Tube Manometer are easily accessible for cleaning. Indicating tube is backed by white scale channel to provide maximum color contrast. Scales are extruded high impact polystyrene plastic, formed to hold columns in perfect alignment. Stark white scales have graduations and numbers silkscreen-printed in black for maximum legibility.<\/p>\n<p>&nbsp;<\/p>\n<h2>Features:<\/h2>\n<ul>\n<li><b><\/b> Our simplest, lowest cost basic U-gage. A dependable U-tube manometer that withstands hard use and provides accurate, high visibility readings.<\/li>\n<li>For use with water, mercury or red gage fluid.<\/li>\n<li>For mercury filled manometers, a scale clamp bar, Dwyer<span style=\"font-size: small;\">\u00ae<\/span> Part No.<\/li>\n<li>A-363 (available as an extra for Series 1221 &#8211; and standard on Series 1222) is recommended.<\/li>\n<li>One pair of carrying plugs and a pair of non-kink vinyl tube connectors are included with each manometer.<\/li>\n<\/ul>\n<div class=\"row\">\n<section class=\"intro-aside column col-5 center\">\n<div class=\"product-gallery\"><\/div>\n<\/section>\n<\/div>\n<div class=\"tabs ui-tabs ui-widget ui-widget-content ui-corner-all\">\n<section id=\"features\" class=\"ui-tabs-panel ui-widget-content ui-corner-bottom\" role=\"tabpanel\" aria-labelledby=\"ui-id-3\" aria-expanded=\"true\" aria-hidden=\"false\">\n<h2>Series 1221 &#8211; Inches of Water<\/h2>\n<table class=\"product-table\">\n<tbody>\n<tr>\n<th class=\"model-number\" nowrap=\"nowrap\" width=\"\">Model<\/th>\n<th class=\"description\" width=\"\">Description<\/th>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">1221-12-W\/M<\/td>\n<td class=\"description\" width=\"\">U-tube manometer, range 6-0-6&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">1221-16-W\/M<\/td>\n<td class=\"description\" width=\"\">U-tube manometer, range 8-0-8&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">1221-20-W\/M<\/td>\n<td class=\"description\" width=\"\">U-tube manometer, range 10-0-10&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">1221-24-W\/M<\/td>\n<td class=\"description\" width=\"\">U-tube manometer, range 12-0-12&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">1221-36-W\/M<\/td>\n<td class=\"description\" width=\"\">U-tube manometer, range 18-0-18&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">1221-8-W\/M<\/td>\n<td class=\"description\" width=\"\">U-tube manometer, range 4-0-4&#8243; w.c.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n<\/div>\n<p>&nbsp;<\/p>\n<h2>Series 1221 &#8211; Inches of Gage Fluid<\/h2>\n<table class=\"product-table\">\n<tbody>\n<tr>\n<th class=\"model-number\" nowrap=\"nowrap\" width=\"\">Model<\/th>\n<th class=\"description\" width=\"\">Description<\/th>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">1221-12-D<\/td>\n<td class=\"description\" width=\"\">U-tube manometer, range 6-0-6&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">1221-16-D<\/td>\n<td class=\"description\" width=\"\">U-tube manometer, range 8-0-8&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">1221-20-D<\/td>\n<td class=\"description\" width=\"\">U-tube manometer, range 10-0-10&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">1221-24-D<\/td>\n<td class=\"description\" width=\"\">U-tube manometer, range 12-0-12&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">1221-36-D<\/td>\n<td class=\"description\" width=\"\">U-tube manometer, range 18-0-18&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">1221-8-D<\/td>\n<td class=\"description\" width=\"\">U-tube manometer, range 4-0-4&#8243; w.c.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h2>Series 1221 &#8211; MM of Water<\/h2>\n<table class=\"product-table\">\n<tbody>\n<tr>\n<th class=\"model-number\" nowrap=\"nowrap\" width=\"\">Model<\/th>\n<th class=\"description\" width=\"\">Description<\/th>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">1221-M1000-W\/M<\/td>\n<td class=\"description\" width=\"\">U-tube manometer, range 500-0-500 mm w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">1221-M200-W\/M<\/td>\n<td class=\"description\" width=\"\">U-tube manometer, range 100-0-100 mm w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">1221-M300-W\/M<\/td>\n<td class=\"description\" width=\"\">U-tube manometer, range 150-0-150 mm w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">1221-M400-W\/M<\/td>\n<td class=\"description\" width=\"\">U-tube manometer, range 200-0-200 mm w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">1221-M600-W\/M<\/td>\n<td class=\"description\" width=\"\">U-tube manometer, range 300-0-300 mm w.c.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h2>Series 1221 &#8211; MM of Gage Fluid<\/h2>\n<table class=\"product-table\">\n<tbody>\n<tr>\n<th class=\"model-number\" nowrap=\"nowrap\" width=\"\">Model<\/th>\n<th class=\"description\" width=\"\">Description<\/th>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">1221-M1000-D<\/td>\n<td class=\"description\" width=\"\">U-tube manometer, range 500-0-500 mm w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">1221-M200-D<\/td>\n<td class=\"description\" width=\"\">U-tube manometer, range 100-0-100 mm w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">1221-M300-D<\/td>\n<td class=\"description\" width=\"\">U-tube manometer, range 150-0-150 mm w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">1221-M400-D<\/td>\n<td class=\"description\" width=\"\">U-tube manometer, range 200-0-200 mm w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">1221-M600-D<\/td>\n<td class=\"description\" width=\"\">U-tube manometer, range 300-0-300 mm w.c.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Series 1221 Flex-Tube\u00ae U-Tube Manometer, Suitable for Pressures up to 100 psi, Better Precision &nbsp; DWYER Series 1221 U-Tube Manometer combine the inherent accuracy of the simple &#8220;U&#8221; Tube with the durability of tough, long-lasting plastic construction. These inexpensive manometers measure positive, negative and differential pressures. Columns are of .375&#8243; O.D. flexible and shatter proof &#8230; <a title=\"DWYER Series 1221 U-Tube Manometer\" class=\"read-more\" href=\"https:\/\/ancor.biz\/index.php\/product\/dwyer-series-1221-flex-tube-u-tube-manometer\/\" aria-label=\"More on DWYER Series 1221 U-Tube Manometer\">Read more<\/a><\/p>\n","protected":false},"featured_media":2228,"template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"spay_email":""},"class_list":["post-2227","product","type-product","status-publish","has-post-thumbnail","hentry","product_cat-brand","product_cat-dwyer-instruments-dwyer-omega","product_cat-dwyer-instruments-brand","product_cat-dwyer-omega","product_cat-manometer-dwyer-instruments-brand","product_cat-manometer-dwyer-instruments-dwyer-omega","product_cat-manometer","product_cat-dwyer-instruments","product_cat-stationary-manometer","product_tag-1221-12-d","product_tag-1221-12-w-m","product_tag-1221-16-d","product_tag-1221-16-w-m","product_tag-1221-20-d","product_tag-1221-20-w-m","product_tag-1221-24-d","product_tag-1221-24-w-m","product_tag-1221-36-d","product_tag-1221-36-w-m","product_tag-1221-8-d","product_tag-1221-8-w-m","product_tag-1221-m1000-d","product_tag-1221-m1000-w-m","product_tag-1221-m200-d","product_tag-1221-m200-w-m","product_tag-1221-m300-d","product_tag-1221-m300-w-m","product_tag-1221-m400-d","product_tag-1221-m400-w-m","product_tag-1221-m600-d","product_tag-1221-m600-w-m","product_tag-dwyer-series-1221-u-tube-manometer","sales-flash-overlay","woocommerce-text-align-center","woocommerce-image-align-center","do-quantity-buttons"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.3 - 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