{"product_id":"ultum-nature-systems-pro-inline-co2-diffuser-16mm-space-gray-aluminum","title":"Ultum Nature Systems Pro Inline CO2 Diffuser, 16mm Space Gray Aluminium","description":"\u003cp\u003eThe Ultum Nature Systems Pro Inline CO2 Diffuser is an external diffuser for freshwater planted aquariums, designed to diffuse CO2 through a filter return line, with a side-mounted ceramic plate and a 16mm model for compatible tubing.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInstalls on the filter return line outside the aquarium — keeps a bulky diffuser out of the tank.\u003c\/li\u003e\n\u003cli\u003eSide-mounted ceramic plate — diffuses CO2 while allowing strong water flow.\u003c\/li\u003e\n\u003cli\u003eAluminum construction in Space Gray — made with corrosion-resistant aluminum.\u003c\/li\u003e\n\u003cli\u003eThree model sizes: 12mm, 16mm and 20mm — choose a size for your canister-filter setup.\u003c\/li\u003e\n\u003cli\u003eAccessible ceramic plate — supports cleaning or replacement without disconnecting the full system.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor a planted aquarium, CO2 diffusion can be part of the tank setup, but an in-tank diffuser takes up space inside the aquascape. This inline design places the diffuser outside the aquarium on the filter’s return line. It is made for aquarists using a canister filter who want to keep the equipment inside the tank less visually prominent.\u003c\/p\u003e\u003ch3\u003eHow does the Pro Inline CO2 Diffuser fit into an aquarium setup?\u003c\/h3\u003e\u003cp\u003eThe diffuser installs outside the aquarium on the canister filter’s return line, so it does not sit among plants and aquascaping hardscape. Water passes through the return line while the side-mounted ceramic plate diffuses CO2. Its design is intended to support strong water flow without clogging the output.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eExternal placement keeps the diffuser out of the aquarium.\u003c\/li\u003e\n\u003cli\u003eCompatible size options include models for UNS Delta and Blitz filters.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhich tubing size is right for this model?\u003c\/h3\u003e\u003cp\u003eThis version is the 16mm model, made for 5\/8 in (16 mm) or 16 ID tubing. Ultum Nature Systems also offers 12mm and 20mm models, so the size choice depends on the tubing used in your canister-filter setup. Match the tubing size before choosing a model.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSelected model: 16mm.\u003c\/li\u003e\n\u003cli\u003eOther available sizes: 12mm and 20mm.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHow do you access the ceramic plate for maintenance?\u003c\/h3\u003e\u003cp\u003eThe ceramic plate can be reached for routine cleaning or replacement without disconnecting the full filter system. This access is useful when maintaining the diffuser as part of regular aquarium equipment care. The aluminum body has a Space Gray finish and is made from corrosion-resistant aluminum.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePlate access supports cleaning and replacement.\u003c\/li\u003e\n\u003cli\u003eNo need to disconnect the full system to access the plate.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe Pro Inline CO2 Diffuser suits freshwater planted-aquarium owners with a compatible canister-filter return line who want external CO2 diffusion and less equipment inside the tank. The 16mm version fits the specified tubing size and uses an accessible ceramic plate for maintenance.\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 tubing fits the 16mm UNS Pro Inline CO2 Diffuser?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The Ultum Nature Systems Pro Inline CO2 Diffuser in 16mm fits 5\/8 in (16 mm) or 16 ID tubing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Where does the UNS Pro Inline CO2 Diffuser install?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The Ultum Nature Systems Pro Inline CO2 Diffuser installs outside a freshwater aquarium on the canister filter’s return line.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Ultum Nature Systems","offers":[{"title":"Default Title","offer_id":67871086739847,"sku":"B0FL9G5248","price":70.11,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1108\/7619\/7255\/files\/ultum-nature-systems-pro-inline-co2-diffuser-front.jpg?v=1793586346","url":"https:\/\/ardentpets.co.uk\/products\/ultum-nature-systems-pro-inline-co2-diffuser-16mm-space-gray-aluminum","provider":"ArdentPets","version":"1.0","type":"link"}