{"product_id":"pawfly-16-inch-air-stone-cylinder-for-large-pumps-diffuser-for-large-aquariums-outdoor-ponds-dwc","title":"Pawfly 16-Inch Air Stone Cylinder for Large Pumps | Diffuser for Large Aquariums, Outdoor Ponds \u0026 DWC","description":"\u003ch2\u003eElevate water aeration for large systems\u003c\/h2\u003e\n\u003cp\u003ePawfly’s 16-inch Air Stone Cylinder is designed for bigger pumps and expansive vessels—from spacious home aquariums to outdoor ponds, garden circulation setups, and DWC reservoirs. Its generous length and durable rubber composition help generate abundant, dense bubbles that diffuse evenly through the water, creating a more dynamic, oxygen-rich environment without taking up extra space.\u003c\/p\u003e\n\u003ch3\u003eKey benefits at a glance\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSteadier bubbles thanks to high-quality rubber material that promotes dense, even diffusion across the water column.\u003c\/li\u003e\n  \u003cli\u003eLarge form factor: 1.2\" diameter by 16\" length, purpose-built for large aquariums, ponds, DWC systems, and aquaculture setups.\u003c\/li\u003e\n  \u003cli\u003eModel ASE-302 with a jetting volume of 36 L\/min and recommended pump power \u0026gt; 7 W; compatible with standard 3\/16\" or 3\/8\" tubing for easy integration.\u003c\/li\u003e\n  \u003cli\u003eStability in water is enhanced by a 13.8 oz weight and two square end holders that help the diffuser stay put while bubbling.\u003c\/li\u003e\n  \u003cli\u003eSimple setup and care: soak in water for 3+ hours before first use; wipe clean to refresh the surface between runs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eReal-world scenarios and usage ideas\u003c\/h3\u003e\n\u003cp\u003eIn large outdoor ponds, this diffuser supports consistent water movement, helping circulate oxygen throughout the volume. In garden circulation systems, it aids in distributing air evenly to prevent stagnant pockets. For DWC reservoirs, the expansive diffusion area can help maintain root zones with improved gas exchange.\u003c\/p\u003e\n\n\u003ch3\u003eWhat to know before you buy\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eThis diffuser is not intended for small aquariums or compact fish tanks. It shines in larger bodies of water where robust aeration is needed.\u003c\/li\u003e\n  \u003cli\u003eTwo end holders anchor the unit, reducing movement even during active bubbling, which helps keep installations stable.\u003c\/li\u003e\n  \u003cli\u003eFor best results, ensure your air pump can meet or exceed the recommended power and pair with compatible tubing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWith its blend of size, stability, and diffusion efficiency, the Pawfly 16-Inch Air Stone Cylinder is a practical choice for larger aquatic environments where steady aeration and durable design matter. It offers a tangible upgrade in water movement, clarity, and overall system health without overpromising outcomes.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What size and compatibility does the Pawfly 16 Inch Air Stone Cylinder have?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It measures 1.2 inches in diameter and 16 inches long, suitable for large aquariums, ponds, and DWC systems; not for small tanks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How should I set up and care for the air stone?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Soak for 3+ hours before use, wipe clean after, and connect with standard tubing (3\/16\" or 3\/8\"). End holders help stability.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Pawfly","offers":[{"title":"Default Title","offer_id":53555169263945,"sku":"B09GVT45Y4","price":34.32,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/1781\/9465\/files\/pawfly-16inch-air-stone-cylinder-aquarium-diffuser_jpg.jpg?v=1766347529","url":"https:\/\/petvita.co.uk\/products\/pawfly-16-inch-air-stone-cylinder-for-large-pumps-diffuser-for-large-aquariums-outdoor-ponds-dwc","provider":"Petvita","version":"1.0","type":"link"}