{"product_id":"vetus-vacuum-relief-valve-waste-water-holding-tank-56mm-iso-8099-vrf56a","title":"Vetus Vacuum Relief Valve – Waste Water Holding Tank, 56mm, ISO 8099 (VRF56A)","description":"\u003cp\u003eThe Vetus VRF56A is a vacuum relief valve designed to prevent holding tank implosion during pump-out operations. Developed to ISO 8099 standard, it automatically opens to admit air when tank pressure drops significantly — eliminating the need for a large-diameter vent line. Corrosion-free synthetic construction. Tank hole size: 56mm.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003ePrevents holding tank implosion during pump-out\u003c\/li\u003e\n\u003cli\u003eCompliant with ISO 8099 standard\u003c\/li\u003e\n\u003cli\u003eAutomatically opens under significantly reduced tank pressure\u003c\/li\u003e\n\u003cli\u003eEliminates need for large-diameter vent line\u003c\/li\u003e\n\u003cli\u003eCorrosion-free synthetic construction\u003c\/li\u003e\n\u003cli\u003eTank hole size: 56mm\u003c\/li\u003e\n\u003cli\u003eSKU: VRF56A\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Vetus","offers":[{"title":"Default Title","offer_id":55277304906007,"sku":"iwa1789709038387","price":40.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1005\/2655\/5415\/files\/vetus-vacuum-relief-valve-waste-water-holding-tank-56mm-iso-8099-vrf56a_1.jpg?v=1789709042","url":"https:\/\/www.mallvilo.com\/products\/vetus-vacuum-relief-valve-waste-water-holding-tank-56mm-iso-8099-vrf56a","provider":"Mallvilo Shop","version":"1.0","type":"link"}