{"id":34749,"date":"2026-04-18T05:14:05","date_gmt":"2026-04-18T03:14:05","guid":{"rendered":"https:\/\/mytankscape.com\/shop\/sunsun-gr-300c-digital-heater-300w-2\/"},"modified":"2026-05-18T00:08:31","modified_gmt":"2026-05-17T22:08:31","slug":"sunsun-gr-300c-digital-heater-300w","status":"publish","type":"product","link":"https:\/\/mytankscape.com\/en\/shop\/sunsun-gr-300c-digital-heater-300w\/","title":{"rendered":"SunSun GR-300C 300W Digital Aquarium Heater with External Control \u2013 Up to 300L"},"content":{"rendered":"<p>The <strong>SunSun GR-300C 300W Digital Aquarium Heater<\/strong> is a fully submersible heating solution designed to maintain stable, precise water temperatures in <strong>large freshwater and marine aquariums up to 300 litres<\/strong>. A digital display and external control dial make it simple to set and monitor temperature accurately without reaching into the water.<\/p>\n<p>Stable temperature is one of the most critical factors in tropical fish keeping. The GR-300C eliminates guesswork with reliable, consistent performance and high-quality quartz glass construction.<\/p>\n<p><strong>Key Features:<\/strong>.<\/p>\n<ul>\n<li><strong>300W heating power<\/strong> \u2014 suitable for aquariums up to 300 litres<\/li>\n<li><strong>Digital display<\/strong> \u2014 clear, accurate temperature readout<\/li>\n<li><strong>External control dial<\/strong> \u2014 adjust temperature without disturbing the tank<\/li>\n<li>High-quality <strong>quartz glass tube<\/strong> for durability and heat resistance<\/li>\n<li>Adjustable temperature range: <strong>20-34 degrees Celsius<\/strong><\/li>\n<li>Fully submersible design for even heat distribution<\/li>\n<li>Compatible with freshwater and marine aquariums<\/li>\n<\/ul>\n<p><strong>Important notes:<\/strong> Always keep fully submerged during operation. Use alongside a separate thermometer for added accuracy. Disconnect from power before removing from the water. Available at mytankscape.com with delivery.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>SunSun GR-300C 300W submersible digital aquarium heater with digital display and external temperature control. Precise, reliable heating for large freshwater tanks up to 300L.<\/p>\n","protected":false},"featured_media":35497,"comment_status":"open","ping_status":"closed","template":"","meta":{"wpai_generated_summary":""},"product_brand":[735],"product_cat":[301,319,298],"product_tag":[],"class_list":["post-34749","product","type-product","status-publish","has-post-thumbnail","product_brand-sunsun-en","product_cat-electronic-devices","product_cat-freshwater-aquariums","product_cat-heater","first","instock","featured","shipping-taxable","purchasable","product-type-simple"],"jetpack_sharing_enabled":true,"jetpack-related-posts":[],"jetpack_likes_enabled":false,"_links":{"self":[{"href":"https:\/\/mytankscape.com\/en\/wp-json\/wp\/v2\/product\/34749","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mytankscape.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/mytankscape.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/mytankscape.com\/en\/wp-json\/wp\/v2\/comments?post=34749"}],"version-history":[{"count":4,"href":"https:\/\/mytankscape.com\/en\/wp-json\/wp\/v2\/product\/34749\/revisions"}],"predecessor-version":[{"id":38876,"href":"https:\/\/mytankscape.com\/en\/wp-json\/wp\/v2\/product\/34749\/revisions\/38876"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mytankscape.com\/en\/wp-json\/wp\/v2\/media\/35497"}],"wp:attachment":[{"href":"https:\/\/mytankscape.com\/en\/wp-json\/wp\/v2\/media?parent=34749"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/mytankscape.com\/en\/wp-json\/wp\/v2\/product_brand?post=34749"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/mytankscape.com\/en\/wp-json\/wp\/v2\/product_cat?post=34749"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/mytankscape.com\/en\/wp-json\/wp\/v2\/product_tag?post=34749"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}