{"product_id":"bioscape-airline-control-valve-set-2-pack-extendable","title":"Bioscape Airline Control Valve Set 2 Pack Extendable","description":"\u003cp\u003e\u003cstrong\u003eDial airflow down without touching the pump.\u003c\/strong\u003e This two-pack of Bioscape airline control valves fits inline on standard aquarium airline and lets you throttle back the air reaching an airstone or ornament — useful when a pump is putting out more bubble than a tank, or a housemate, wants to hear.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInline flow control\u003c\/strong\u003e — turn the dial to reduce airflow to a single outlet, independent of the pump.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtendable design\u003c\/strong\u003e — built to sit between two lengths of airline rather than needing the line cut to a fixed point.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlastic construction\u003c\/strong\u003e — lightweight and corrosion-proof around aquarium water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-pack\u003c\/strong\u003e — enough to tune two outlets from one twin-outlet pump.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003ePack size\u003c\/th\u003e\n\u003ctd\u003e2 valves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eExtendable inline airflow control valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFitting\u003c\/th\u003e\n\u003ctd\u003eStandard aquarium airline\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003ePlastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for:\u003c\/strong\u003e dialling back airflow to an airstone, sponge filter or bubbling ornament on standard airline.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e stopping backflow into the pump — this valve controls flow, it doesn't act as a one-way check valve. Fit a Bioscape check valve as well if the pump sits at or below the waterline.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTurn the dial through its full range occasionally so it doesn't seize in one position from mineral build-up.\u003c\/li\u003e\n\u003cli\u003eClosing a valve fully increases back-pressure on the pump — back it off slightly rather than shutting it hard against a running pump for long periods.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eGoes well with\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bioscape-bioscape-airline-check-valves-2-pack\"\u003eBioscape Airline Check Valves 2 Pack\u003c\/a\u003e — pair with this valve for backflow protection as well as flow control.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bioscape-air-pump-1000\"\u003eBioscape Air Pump 1000\u003c\/a\u003e — a single-outlet pump this valve can help tune down.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/bioscape-bioscape-airline-roll-100-metres\"\u003eBioscape Airline Tubing 100 m Roll\u003c\/a\u003e — bulk airline to extend either side of the valve.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eCovered by the standard Bioscape supplier warranty against manufacturing defects, in addition to the consumer guarantees you're entitled to under Australian Consumer Law. Ships as a small, light parcel with standard delivery.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eWhat's the difference between this and a check valve?\u003c\/h4\u003e\u003cp\u003eA check valve only stops backflow into the pump; it doesn't change how much air comes through. This control valve does the opposite — it throttles airflow but gives no backflow protection. Many setups use both.\u003c\/p\u003e\u003ch4\u003eWill this reduce noise from bubbling?\u003c\/h4\u003e\u003cp\u003eYes — dialling back the flow to an airstone is one of the simplest ways to quieten a tank that's bubbling harder than you'd like.\u003c\/p\u003e\u003ch4\u003eCan I use one valve to split air to two outlets?\u003c\/h4\u003e\u003cp\u003eNo, this is a single-line flow control, not a splitter. Each outlet needs its own inline valve.\u003c\/p\u003e\u003ch4\u003eDoes closing the valve fully damage the pump?\u003c\/h4\u003e\u003cp\u003eRunning a diaphragm pump fully closed for long periods adds back-pressure it isn't designed for — back the valve off slightly rather than shutting it hard.\u003c\/p\u003e","brand":"Bioscape","offers":[{"title":"Default Title","offer_id":55293049405731,"sku":"BIS123","price":3.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/bioscape-airline-control-val-43876862099747.webp?v=1790240035","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/bioscape-airline-control-valve-set-2-pack-extendable","provider":"Nicks AOT","version":"1.0","type":"link"}