{"title":"Aquarium RO (Reverse Osmosis) Parts \u0026 Accessories","description":"\u003cp style=\"text-align: center;\" data-end=\"468\" data-start=\"145\"\u003eKeep your reverse osmosis system running smoothly with our complete range of RO parts and accessories for aquariums. Whether you're replacing worn-out filters, upgrading fittings, or customising your RO setup, we have everything you need to maintain peak performance.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\" data-end=\"787\" data-start=\"470\"\u003eOur selection includes essential components like sediment and carbon filter cartridges, replacement membranes, flow restrictors, auto shut-off valves, pressure gauges, DI resin, tubing, and more. These accessories are designed to help you achieve consistently pure water for sensitive freshwater and marine aquariums.\u003c\/p\u003e","products":[{"product_id":"reverse-osmosis-system-filter-wrench","title":"Reverse Osmosis Water Filter Canister Housing Wrench","description":"\u003cp\u003eOpen your RO filter canister with ease. Made from durable HDPE plastic the wrench will not snap under increased pressure from tightening or opening stubborn sump housing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Important Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSize 10'' Inner circumference: 10.3cm.\u003c\/li\u003e\n\u003cli\u003eSize 20'' Inner\u003cspan\u003e \u003c\/span\u003ecircumference: 11.4cm.\u003c\/li\u003e\n\u003cli\u003eSize\u003cspan\u003e 1812 Slim Line\u003c\/span\u003e Inner\u003cspan\u003e \u003c\/span\u003ecircumference: 7.7cm.\u003c\/li\u003e\n\u003cli\u003eSize\u003cspan\u003e 3013\u003c\/span\u003e Inner\u003cspan\u003e \u003c\/span\u003ecircumference:\u003cspan\u003e 10.8\u003c\/span\u003ecm.\u003c\/li\u003e\n\u003cli\u003eMade from durable HDPE plastic.\u003c\/li\u003e\n\u003cli\u003eHousing wrench for sump housing.\u003c\/li\u003e\n\u003cli\u003eVarious sizing to suit all RO units on the market.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Castle Dawn Aquatics","offers":[{"title":"10 Inch wrench","offer_id":30323807944774,"sku":"SKU00157-1","price":9.38,"currency_code":"USD","in_stock":true},{"title":"20 Inch wrench","offer_id":30323807977542,"sku":"SKU00157-2","price":10.38,"currency_code":"USD","in_stock":true},{"title":"1812 slim line wrench","offer_id":30323808010310,"sku":"SKU00157-3","price":9.38,"currency_code":"USD","in_stock":true},{"title":"3013 wrench","offer_id":30323808043078,"sku":"SKU00157-4","price":10.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0036\/7679\/9046\/products\/reverse-osmosis-water-filter-canister-housing-wrench-castle-dawn-aquatics-642427.jpg?v=1623338671"},{"product_id":"10-meters-of-water-pipe-1-4-tubing-reverse-osmosis-water-filter","title":"10 Meters of Water Pipe 1\/4\" 3\/8'' Tubing Pipe Reverse Osmosis Water Filter","description":"\u003cp\u003eOur piping is flexible and durable, made using CCK PE plastic which does not crack or harden like standard PE piping. If you require more than the standard size please get in touch.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Important Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTubing is made from CCK PE plastic which will not harden and crack like standard PE tubing.\u003c\/li\u003e\n\u003cli\u003ePressure: 0.6Mpa\u003c\/li\u003e\n\u003cli\u003eSize: 1\/4'' - inner 4mm.\u003c\/li\u003e\n\u003cli\u003eSize: 3\/8'' - inner 6.1mm.\u003c\/li\u003e\n\u003cli\u003e1-year warranty (T\u0026amp;C apply).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/h3\u003e","brand":"Castle Dawn Aquatics","offers":[{"title":"10 meters 1\/4'' (6.4mm) tubing","offer_id":30324040695878,"sku":"SKU00158-1","price":11.38,"currency_code":"USD","in_stock":true},{"title":"5 meters 3\/8'' (9.5mm) tubing","offer_id":30324040728646,"sku":"SKU00158-2","price":11.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0036\/7679\/9046\/products\/10-meters-of-water-pipe-14-38-tubing-pipe-reverse-osmosis-water-filter-castle-dawn-aquatics-660281.jpg?v=1623340860"},{"product_id":"ro-reverse-osmosis-water-filter-washers","title":"RO Reverse Osmosis Water Filter Washers Seals Pack of 20","description":"\u003cp\u003eStandard replacement washers for all RO units.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Important Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePack of 20.\u003c\/li\u003e\n\u003cli\u003e10-inch washer inner circumference: 88mm \u003c\/li\u003e\n\u003cli\u003e20-inch washer inner circumference: 98mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Castle Dawn Aquatics","offers":[{"title":"10 inch washer","offer_id":30324815528006,"sku":"SKU00159-1","price":15.38,"currency_code":"USD","in_stock":true},{"title":"20 inch washer","offer_id":30324815560774,"sku":"SKU00159-2","price":17.38,"currency_code":"USD","in_stock":true},{"title":"1812 washer","offer_id":30324815593542,"sku":"SKU00159-3","price":12.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0036\/7679\/9046\/products\/ro-reverse-osmosis-water-filter-washers-seals-castle-dawn-aquatics-612135.jpg?v=1623338562"},{"product_id":"ro-reverse-osmosis-straight-union-connector-1-4-to-1-4-push-fit-tube-o-d","title":"RO Reverse Osmosis Straight Union Connector 1\/4\" to 1\/4\" Push-Fit Tube O.D. (5 Pack)","description":"\u003cp\u003e\u003cspan class=\"a-list-item\"\u003eThe straight union connector uses a Push-fit lock which allows for quick disconnection without the need for tools. Made from FDA compliant materials making them safe for aquarium use. Fits all standard RO 1\/4'' tubing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003eKey Features and Important Notes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eFits tubing: 1\/4'' (6.4mm).\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003ePush-fit technology allows for quick disconnection without the need for tools.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eMade from FDA compliant plastics making them safe for aquarium use.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eEasy to alter or extend a system resulting in reduced maintenance and installation times.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eSuitable for use with semi-rigid plastic tubes (polypropylene, polyethylene, nylon) and soft metal (brass, copper, mild steel) tubing.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003e\u003cspan class=\"a-list-item\"\u003eIf you require this connector for 3\/4'' RO tubing please get in touch. \u003c\/span\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e","brand":"Castle Dawn Aquatics","offers":[{"title":"Default Title","offer_id":30324999979078,"sku":"SKU00160","price":11.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0036\/7679\/9046\/products\/ro-reverse-osmosis-straight-union-connector-14-to-14-push-fit-tube-od-5-pack-castle-dawn-aquatics-912896.jpg?v=1623338658"},{"product_id":"ro-reverse-osmosis-ro-reverse-osmosis-union-elbow-connector-1-4-to-1-4-push-fit-tube-o-d-5-pack-connector-1-4-to-1-4-push-fit-tube-o-d-5-pack","title":"RO Reverse Osmosis Union Elbow Connector 1\/4\" to 1\/4\" Push-Fit Tube O.D. (5 Pack)","description":"\u003cp\u003e\u003cspan class=\"a-list-item\"\u003eThe union elbow connector uses a Push-fit lock which allows for quick disconnection without the need for tools. Made from FDA compliant materials making them safe for aquarium use. Fits all standard RO 1\/4'' tubing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003eKey Features and Important Notes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eFits tubing: 1\/4'' (6.4mm).\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003ePush-fit technology allows for quick disconnection without the need for tools.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eMade from FDA compliant plastics making them safe for aquarium use.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eEasy to alter or extend a system resulting in reduced maintenance and installation times.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eSuitable for use with semi-rigid plastic tubes (polypropylene, polyethylene, nylon) and soft metal (brass, copper, mild steel) tubing.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003e\u003cspan class=\"a-list-item\"\u003eIf you require this connector for 3\/4'' RO tubing please get in touch. \u003c\/span\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e","brand":"Castle Dawn Aquatics","offers":[{"title":"Default Title","offer_id":30325066629190,"sku":"SKU00161","price":11.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0036\/7679\/9046\/products\/ro-reverse-osmosis-union-elbow-connector-14-to-14-push-fit-tube-od-5-pack-castle-dawn-aquatics-195464.jpg?v=1623338564"},{"product_id":"ro-reverse-osmosis-inline-shut-off-valve-to-connector-for-ro-tubing-4-pack","title":"RO Reverse Osmosis Inline Shut Off Valve ¼’’ to ¼’’ Connector For RO Tubing (4 Pack)","description":"\u003cp\u003e\u003cspan class=\"a-list-item\"\u003eThe inline shut off valve connector uses a Push-fit lock which allows for quick disconnection without the need for tools. Made from FDA compliant materials making them safe for aquarium use. Fits all standard RO 1\/4'' tubing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003eKey Features and Important Notes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eFits tubing: 1\/4'' (6.4mm).\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003ePush-fit technology allows for quick disconnection without the need for tools.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eMade from FDA compliant plastics making them safe for aquarium use.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eEasy to alter or extend a system resulting in reduced maintenance and installation times.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eSuitable for use with semi-rigid plastic tubes (polypropylene, polyethylene, nylon) and soft metal (brass, copper, mild steel) tubing.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003e\u003cspan class=\"a-list-item\"\u003eIf you require this connector for 3\/4'' RO tubing please get in touch. \u003c\/span\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e","brand":"Castle Dawn Aquatics","offers":[{"title":"Default Title","offer_id":30325080096838,"sku":"SKU00161C","price":11.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0036\/7679\/9046\/products\/ro-reverse-osmosis-inline-shut-off-valve-to-connector-for-ro-tubing-4-pack-castle-dawn-aquatics-161144.jpg?v=1623338662"},{"product_id":"ro-reverse-osmosis-1-4-tee-t-piece-connector-push-fit-to-connector-for-ro-tubing-4-pack","title":"RO Reverse Osmosis Tee T-Piece Connector Push Fit ¼’’ to ¼’’ Connector (5 Pack)","description":"\u003cp\u003e\u003cspan class=\"a-list-item\"\u003eThe T-piece connector uses a Push-fit lock which allows for quick disconnection without the need for tools. Made from FDA compliant materials making it safe for aquarium use. Fits all standard RO 1\/4'' tubing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003eKey Features and Important Notes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eFits tubing: 1\/4'' (6.4mm).\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003ePush-fit technology allows for quick disconnection without the need for tools.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eMade from FDA compliant plastics making them safe for aquarium use.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eEasy to alter or extend a system resulting in reduced maintenance and installation times.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"a-list-item\"\u003eSuitable for use with semi-rigid plastic tubes (polypropylene, polyethylene, nylon) and soft metal (brass, copper, mild steel) tubing.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003e\u003cspan class=\"a-list-item\"\u003eIf you require this connector for 3\/4'' RO tubing please get in touch. \u003c\/span\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e","brand":"Castle Dawn Aquatics","offers":[{"title":"Default Title","offer_id":30325117386822,"sku":"SKU00161B","price":11.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0036\/7679\/9046\/products\/ro-reverse-osmosis-tee-t-piece-connector-push-fit-to-connector-5-pack-castle-dawn-aquatics-490351.jpg?v=1623338567"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0036\/7679\/9046\/collections\/Aquarium_RO_System_Accessories_Section.jpg?v=1754213536","url":"https:\/\/www.castledawnaquatics.com\/collections\/aquarium-ro-reverse-osmosis-parts-accessories.oembed","provider":"Castle Dawn Aquatics","version":"1.0","type":"link"}