{"product_id":"hurlcon-astralpool-component-bag-40mm-50mm-unions-check-valve","title":"Astralpool Component Bag - 40mm \u0026 50mm Unions, Tails \u0026 Check Valve 78303","description":"\u003c!-- HASP-FLP-1.0 | SKU 78303 | canary: component-bag-echo --\u003e\n\u003ch3\u003eAstralpool Component Bag - 40mm \u0026amp; 50mm Unions, Tails \u0026amp; Check Valve 78303\u003c\/h3\u003e\n\u003cp\u003eGenuine Astralpool plumbing component bag, part number \u003cstrong\u003e78303\u003c\/strong\u003e. This is the loose hardware pack supplied with the pump — the union nuts, barrel tails and the in-pump check valve that connect the wet end to your suction and return lines. If the bag was lost during the original install, or the unions have been cross-threaded or cracked, this restores the set in one purchase.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003ePhysically Stocked, unlike most \"drop-shipping\" websites.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003eShipped from VIC, NSW, WA, QLD\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat Is In The Bag\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUnion nuts and barrel tails to suit both \u003cstrong\u003e40mm\u003c\/strong\u003e and \u003cstrong\u003e50mm\u003c\/strong\u003e plumbing\u003c\/li\u003e\n\u003cli\u003eUnion tail o-rings\u003c\/li\u003e\n\u003cli\u003eIn-pump \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/hurlcon-astralpool-pump-check-one-way-valve\"\u003echeck valve (598770)\u003c\/a\u003e — the loose non-return flap that ships inside the pump basket\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Both Sizes Are Supplied\u003c\/h3\u003e\n\u003cp\u003eAstralpool ships the pump able to plumb either way. Most Australian domestic pools run \u003cstrong\u003e50mm\u003c\/strong\u003e on the CTX and E-Series; older CX and TX installs are commonly \u003cstrong\u003e40mm\u003c\/strong\u003e. The bag covers both so the installer can match whatever is already in the ground without a second trip.\u003c\/p\u003e\n\n\u003ch3\u003eAbout The Check Valve\u003c\/h3\u003e\n\u003cp\u003eThe check valve is supplied loose in the basket, not fitted. It stops water rushing backwards through the pump when it shuts down. Astralpool specifies it for spas on cartridge filters, any time multiple pumps share one suction or return line, and any install where back-flow can occur. It does slightly reduce flow, which is why it is supplied loose rather than pre-fitted.\u003c\/p\u003e\n\n\u003ch3\u003eBuying The Pieces Separately\u003c\/h3\u003e\n\u003cp\u003eIf you only need one item rather than the full bag:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e950920\u003c\/strong\u003e — 50mm union tail on its own (\u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/tail-union-50mm\"\u003ebuy here\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e78104\u003c\/strong\u003e — 65mm union tail o-ring (\u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/astral-65mm-oring\"\u003ebuy here\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e598770\u003c\/strong\u003e — check valve assembly on its own (\u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/hurlcon-astralpool-pump-check-one-way-valve\"\u003ebuy here\u003c\/a\u003e)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFits These Pumps\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAstralpool CTX — CTX 180, 280, 360, 400, 500 (including MkII)\u003c\/li\u003e\n\u003cli\u003eAstralpool E-Series — E 140, E 170, E 230\u003c\/li\u003e\n\u003cli\u003eHurlcon \u0026amp; Astralpool CX and TX ranges\u003c\/li\u003e\n\u003cli\u003eAstralpool Viron XT — P320 XT, P520 XT\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eCommon search terms: Astralpool 78303, component bag CTX, 50mm heater tail bag, Astral pump union kit, Hurlcon union nut and tail set, CTX check valve bag.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eManufacturer Catalogues, Diagrams \u0026amp; Part Numbers\u003c\/h3\u003e\n\u003cp\u003eNeed exploded views, spare part numbers, product numbers or diagrams? See the manufacturer catalogue: \u003ca href=\"https:\/\/hasp.com.au\/pages\/Astralpool_Catalogue_2026\"\u003eAstralpool Catalogue 2026\u003c\/a\u003e | \u003ca href=\"https:\/\/hasp.com.au\/pages\/Zodiac_Catalogue_2026\"\u003eZodiac Catalogue 2026\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBefore ordering:\u003c\/strong\u003e confirm this part is correct for your pump. Use the catalogue above, seek professional assistance, or \u003ca href=\"mailto:shop@hasp.com.au\"\u003econtact us\u003c\/a\u003e with photos of your existing part, model details, serial numbers and any labels. As with all products, this must be diagnosed and fitted by a qualified and experienced person. This is a \u003ca href=\"https:\/\/heaterandspaparts.com.au\/policies\/refund-policy\" rel=\"noopener\" target=\"_blank\"\u003especial-order\u003c\/a\u003e item.\u003c\/p\u003e\n\u003c!-- HASP-FLP-1.0 end | canary: component-bag-echo --\u003e","brand":"Astralpool","offers":[{"title":"Default Title","offer_id":39283545800893,"sku":"78303","price":161.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/5253\/files\/astralpool-component-bag-40mm-50mm-unions-tails-check-valve-78303-pool-spa-492.webp?v=1788771739","url":"https:\/\/hasp.com.au\/products\/hurlcon-astralpool-component-bag-40mm-50mm-unions-check-valve","provider":"Heater and Spa Parts","version":"1.0","type":"link"}