{"product_id":"hht-direct-vent-insert-kit-one-4-liner-one-30-liner-plus-term-cap-components-link-dv4-30b","title":"Majestic 3-Inch Direct-Vent Insert Liner Kit, 4-Foot and 30-Foot Liners LINK-DV4-30B","description":"\u003ch2\u003eLINK-DV4-30B Direct-Vent Insert Venting Component\u003c\/h2\u003e\u003cp\u003eTwo 3-inch flexible liners expanding to 4 feet and 30 feet respectively, plus termination cap and flashing.\u003c\/p\u003e\u003ch3\u003eDocumented compatibility\u003c\/h3\u003e\u003cp\u003eThe Majestic Ruby installation manual lists this exact part for RUBY25IN, RUBY25IL, RUBY30IN, RUBY30IL, RUBY35IN and RUBY35IL inserts. Compatibility with another appliance must be established in that appliance’s documentation; this listing does not make the component universal.\u003c\/p\u003e\u003ch3\u003eInstallation considerations\u003c\/h3\u003e\u003cp\u003eThe Ruby family uses a vertical termination system and does not permit horizontal termination. Its stated vertical run range is 10–50 feet. Kit liner length is not a substitute for the appliance’s venting limits or a complete installation plan. The installer must verify the chimney, connections and termination arrangement.\u003c\/p\u003e\u003cp\u003eThe short-intake arrangement can be more susceptible to cold-air infiltration and negative pressure. The manufacturer advises considering a full-length intake depending on chimney cleanliness. Follow the applicable vent diagram.\u003c\/p\u003e\u003cp\u003eFollow the manufacturer instructions and applicable codes. \u003ca href=\"https:\/\/downloads.hearthnhome.com\/installManuals\/2542_980_RUBY-25-30-35IN_INSTALL.pdf\"\u003eRuby installation manual 2542-980 Rev AF\u003c\/a\u003e: pages 20–25 for vent limits and installation, page 48 for exact components and kit contents.\u003c\/p\u003e","brand":"Majestic","offers":[{"title":"Default Title","offer_id":50593316077730,"sku":"LINK-DV4-30B","price":579.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0695\/5846\/8770\/files\/Screenshot_2026-05-13_072933__79751.1787590629.1280.1280.jpg?v=1791682302","url":"https:\/\/unitedfireplaces.com\/products\/hht-direct-vent-insert-kit-one-4-liner-one-30-liner-plus-term-cap-components-link-dv4-30b","provider":"United Fireplaces","version":"1.0","type":"link"}