{"product_id":"spruce-flexible-coupling-4-3-white","title":"Spruce Flexible Coupling – 4\" × 3\" (White)","description":"\u003ch2\u003eSpruce Flexible Coupling – 4\" × 3\" White\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eFlexible PVC reducer coupling for connecting 4\" to 3\" Schedule 40 PVC pipe in radon mitigation systems.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Spruce 4\" × 3\" white flexible coupling provides a \u003cstrong\u003esecure, airtight transition\u003c\/strong\u003e between 4\" and 3\" Schedule 40 PVC pipe. Built with high-performance flexible PVC and a \u003cstrong\u003estainless steel clamp\u003c\/strong\u003e, this reducer coupling absorbs vibration, accommodates minor misalignment, and creates a reliable seal at pipe-size transitions — essential for professional radon mitigation installations.\u003c\/p\u003e\n\u003ch3\u003eApplication\u003c\/h3\u003e\n\u003cp\u003eUsed wherever a radon mitigation system transitions between 3\" and 4\" PVC pipe — typically at the radon fan inlet or outlet, or when connecting to existing 3\" vent piping. Ideal for sub-slab depressurization, crawl space ventilation, and soil-gas exhaust systems.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-performance \u003cstrong\u003eflexible PVC\u003c\/strong\u003e construction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless steel clamp\u003c\/strong\u003e included for a secure, airtight seal\u003c\/li\u003e\n\u003cli\u003eWhite finish blends with Schedule 40 PVC pipe\u003c\/li\u003e\n\u003cli\u003eAbsorbs vibration from inline radon fans\u003c\/li\u003e\n\u003cli\u003eAccommodates minor pipe misalignment\u003c\/li\u003e\n\u003cli\u003e4\" to 3\" reducer — transitions between standard Schedule 40 PVC sizes\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RadonAway","offers":[{"title":"Default Title","offer_id":48392153825535,"sku":"RA-79038","price":20.49,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0793\/6639\/0015\/files\/79038_fernco_coupling.png?v=1776099048","url":"https:\/\/radondepot.ca\/products\/spruce-flexible-coupling-4-3-white","provider":"Radon Depot","version":"1.0","type":"link"}