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{"id":15451131084951,"title":"Midline Valve S3565 Double Shutoff Expansion Tank Isolator Valve, with Drain, Brass, 1\/2 in. MIP x FIP Single Pack 1\/2 in.","handle":"midline-valve-s3565-double-shutoff-expansion-tank-isolator-valve-with-drain-brass-1-2-in-mip-x-fip-single-pack-1-2-in","description":"\u003ch3\u003eMidline Valve S3565 Double Shutoff Expansion Tank Isolator Valve, with Drain, Brass, 1\/2 in. MIP x FIP\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eThis Midline Valve Expansion Tank Isolation Valve is the ideal choice for flow\ncontrol in your heating systems. It installs between the expansion tank and\nair scoop, and enables easy flow control for repair and maintenance. It\nfeatures a double shutoff, solid brass body, secure MIP x FIP connections, and\ncomfort grip vinyl lever handles. Manufactured with the highest quality\nmaterials and workmanship, it will serve your plumbing needs faithfully. ⚠\nCalifornia Proposition 65 Warning: This product is known to the state of\nCalifornia to cause cancer, or other reproductive harm. For more information,\ngo to\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eIsolates expansion tank and allows the boiler to fill at 0 Pressure\u003c\/li\u003e\n \u003cli\u003eInstalls between expansion tank and Air scoop\u003c\/li\u003e\n \u003cli\u003eLabor Saving design; saves at least 8 soldeRed Joints\u003c\/li\u003e\n \u003cli\u003eAllows for easy maintenance of Heating system\u003c\/li\u003e\n \u003c\/ul\u003e","published_at":"2026-10-28T15:54:06+11:00","created_at":"2026-10-27T14:18:21+11:00","vendor":"Midline Valve","type":"Pipe Fittings","tags":["home_improvement_Oct2026"],"price":22000,"price_min":22000,"price_max":22000,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":68164271374487,"title":"1\/2 in. \/ Single Pack","option1":"1\/2 in.","option2":"Single Pack","option3":null,"sku":"B088LQ3XKJ","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Midline Valve S3565 Double Shutoff Expansion Tank Isolator Valve, with Drain, Brass, 1\/2 in. MIP x FIP Single Pack 1\/2 in. - 1\/2 in. \/ Single Pack","public_title":"1\/2 in. \/ Single Pack","options":["1\/2 in.","Single Pack"],"price":22000,"weight":508,"compare_at_price":null,"inventory_management":"shopify","barcode":"804595108710","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/newnestshop.com\/cdn\/shop\/files\/B088LQ3XKJ.jpg?v=1793091120","\/\/newnestshop.com\/cdn\/shop\/files\/715C0dMiMOL.jpg?v=1793091120"],"featured_image":"\/\/newnestshop.com\/cdn\/shop\/files\/B088LQ3XKJ.jpg?v=1793091120","options":["Size","Style"],"media":[{"alt":null,"id":46554826801303,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1200,"width":1200,"src":"\/\/newnestshop.com\/cdn\/shop\/files\/B088LQ3XKJ.jpg?v=1793091120"},"aspect_ratio":1.0,"height":1200,"media_type":"image","src":"\/\/newnestshop.com\/cdn\/shop\/files\/B088LQ3XKJ.jpg?v=1793091120","width":1200},{"alt":null,"id":46554826834071,"position":2,"preview_image":{"aspect_ratio":1.0,"height":1500,"width":1500,"src":"\/\/newnestshop.com\/cdn\/shop\/files\/715C0dMiMOL.jpg?v=1793091120"},"aspect_ratio":1.0,"height":1500,"media_type":"image","src":"\/\/newnestshop.com\/cdn\/shop\/files\/715C0dMiMOL.jpg?v=1793091120","width":1500}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eMidline Valve S3565 Double Shutoff Expansion Tank Isolator Valve, with Drain, Brass, 1\/2 in. MIP x FIP\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eThis Midline Valve Expansion Tank Isolation Valve is the ideal choice for flow\ncontrol in your heating systems. It installs between the expansion tank and\nair scoop, and enables easy flow control for repair and maintenance. It\nfeatures a double shutoff, solid brass body, secure MIP x FIP connections, and\ncomfort grip vinyl lever handles. Manufactured with the highest quality\nmaterials and workmanship, it will serve your plumbing needs faithfully. ⚠\nCalifornia Proposition 65 Warning: This product is known to the state of\nCalifornia to cause cancer, or other reproductive harm. For more information,\ngo to\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eIsolates expansion tank and allows the boiler to fill at 0 Pressure\u003c\/li\u003e\n \u003cli\u003eInstalls between expansion tank and Air scoop\u003c\/li\u003e\n \u003cli\u003eLabor Saving design; saves at least 8 soldeRed Joints\u003c\/li\u003e\n \u003cli\u003eAllows for easy maintenance of Heating system\u003c\/li\u003e\n \u003c\/ul\u003e"}

Midline Valve S3565 Double Shutoff Expansion Tank Isolator Valve, with Drain, Brass, 1/2 in. MIP x FIP Single Pack 1/2 in.

In Stock. Leaves warehouse within 2 - 3 business days

$220.00 AUD
Maximum quantity available reached.
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Midline Valve S3565 Double Shutoff Expansion Tank Isolator Valve, with Drain, Brass, 1/2 in. MIP x FIP

This Midline Valve Expansion Tank Isolation Valve is the ideal choice for flow control in your heating systems. It installs between the expansion tank and air scoop, and enables easy flow control for repair and maintenance. It features a double shutoff, solid brass body, secure MIP x FIP connections, and comfort grip vinyl lever handles. Manufactured with the highest quality materials and workmanship, it will serve your plumbing needs faithfully. ⚠ California Proposition 65 Warning: This product is known to the state of California to cause cancer, or other reproductive harm. For more information, go to

Product Features

  • Isolates expansion tank and allows the boiler to fill at 0 Pressure
  • Installs between expansion tank and Air scoop
  • Labor Saving design; saves at least 8 soldeRed Joints
  • Allows for easy maintenance of Heating system

Buy with confidence as this product comes with 18 months full local warranty in Australia & New Zealand (unless otherwise stated in the overview).

This product also comes with the benefits of the CocoonPower Warranty. For further details please read our Warranty Guidelines.

You can also purchase 3 Year Extended Care. If you are interested please see our Extended Care Information.