{"product_id":"4mm-airline-non-return-valve-pond-air-pump-check-valve","title":"4mm Airline Non-Return Valve – Pond Air Pump Check Valve","description":"\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eProtect your pond air pump from water backflow with this \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4mm Airline Non-Return Valve\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Designed for use with pond and aquarium aeration systems, this simple yet essential fitting helps prevent water from siphoning back through the airline and damaging your air pump.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe one-way valve allows air to flow towards your pond while preventing water from travelling in the opposite direction, offering additional protection for your aeration equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrevents Water Backflow\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Helps protect air pumps from water damage caused by siphoning.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e4mm Airline Connection\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Suitable for standard 4mm airline tubing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eEasy Installation\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Fits directly into your existing airline.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOne-Way Airflow\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Allows air to pass towards your air stones while preventing reverse flow.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSuitable for Ponds \u0026amp; Aquariums\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Ideal for koi ponds, garden ponds, aquariums and small aeration systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAffordable Pump Protection\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – A simple accessory that can help prevent costly equipment damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eProduct Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Airline Non-Return Valve \/ Check Valve\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eConnection Size:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 4mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCompatibility:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 4mm airline tubing\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eApplication:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Pond and aquarium air systems\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eQuantity:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 1 Valve\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eInstallation Advice\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eInstall the non-return valve inline between your air pump and air stone, ensuring the airflow direction indicated on the valve points towards the pond.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor systems with multiple airlines, we recommend installing a separate non-return valve on each airline for maximum protection.\u003c\/span\u003e\u003c\/p\u003e","brand":"Queni Koi Southern","offers":[{"title":"Default Title","offer_id":59091979501942,"sku":null,"price":1.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0943\/9238\/5910\/files\/2mmAirlineNonreturn.webp?v=1792665420","url":"https:\/\/www.queni-koi.co.uk\/products\/4mm-airline-non-return-valve-pond-air-pump-check-valve","provider":"Queni Koi Southern","version":"1.0","type":"link"}