{"product_id":"astral-hurlcon-50mm-multiport-valve-cover-oring-75930","title":"Astral Hurlcon 50mm Multiport Valve Cover O-Ring (75930)","description":"\u003ch2\u003eAstral Hurlcon 50mm Multiport Valve Cover O-Ring – Part 75930\u003c\/h2\u003e\n\n\u003cp\u003eStop leaks at the source with the genuine \u003cstrong\u003eAstral Hurlcon 50mm MPV Cover O-Ring\u003c\/strong\u003e (Part 75930). This is the OEM replacement O-ring for the valve cover on Astral Hurlcon 50mm multiport valves (Praher valves), manufactured post-September 2009. A worn or flattened cover O-ring is a common cause of water leaking from the top of the multiport valve — this is a quick, low-cost fix that restores a watertight seal.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Replace Your MPV Cover O-Ring?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWorn O-rings cause water to leak from the multiport valve lid or cover\u003c\/li\u003e\n\u003cli\u003eDegraded seals reduce filter system pressure and efficiency\u003c\/li\u003e\n\u003cli\u003eGenuine OEM part ensures correct sizing and long-term seal integrity\u003c\/li\u003e\n\u003cli\u003eSimple DIY replacement — no special tools required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAstral Hurlcon 50mm Multiport Valve (MPV)\u003c\/li\u003e\n\u003cli\u003ePraher 50mm Valve — post-September 2009 to current models\u003c\/li\u003e\n\u003cli\u003eParts diagram reference: \u003cstrong\u003ePart 7\u003c\/strong\u003e on the 50mm valve diagram\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 75930\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Astral (Hurlcon)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Size:\u003c\/strong\u003e 50mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Post-September 2009 MPV models to current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiagram Reference:\u003c\/strong\u003e Part 7 (50mm valve diagram)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.1 kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat does the Astral 75930 O-ring seal?\u003c\/strong\u003e\u003cbr\u003eThe 75930 is the cover O-ring for the Astral Hurlcon 50mm multiport valve. It seals the joint between the valve cover and the valve body, preventing water from leaking out of the top of the MPV.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhich multiport valves does part 75930 fit?\u003c\/strong\u003e\u003cbr\u003ePart 75930 fits the Astral Hurlcon 50mm multiport valve (Praher valve) on models manufactured from September 2009 to current. It is referenced as Part 7 on the 50mm valve parts diagram. If your valve was manufactured before September 2009, a different O-ring may be required — contact us if you are unsure.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow do I know if my MPV cover O-ring needs replacing?\u003c\/strong\u003e\u003cbr\u003eCommon signs include water leaking from the top or lid area of the multiport valve, visible flattening, cracking, or brittleness in the existing O-ring, or a drop in filter system pressure. O-rings typically degrade every 2–5 years depending on chemical exposure and UV.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs this a genuine Astral part?\u003c\/strong\u003e\u003cbr\u003eYes — this is a genuine Astral Hurlcon OEM replacement O-ring (part 75930), not an aftermarket substitute. Genuine parts ensure correct sizing and a reliable, long-lasting seal.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow do I replace the multiport valve cover O-ring?\u003c\/strong\u003e\u003cbr\u003eTurn off the pump and release system pressure. Remove the multiport valve cover screws and lift the cover. Remove the old O-ring from its groove, clean the seating surface, and press the new 75930 O-ring firmly into place. Refit the cover and tighten screws evenly. A small amount of silicone lubricant (not petroleum-based) on the O-ring helps it seat correctly and extends its life.\u003c\/p\u003e","brand":"Astral","offers":[{"title":"Default Title","offer_id":54445533823251,"sku":"75930","price":10.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/0591\/1827\/files\/Screenshot2026-07-17113144.png?v=1784251912","url":"https:\/\/poolshop.com.au\/products\/astral-hurlcon-50mm-multiport-valve-cover-oring-75930","provider":"Pool Shop Australia","version":"1.0","type":"link"}