--- product_id: 13020168 title: "Pond H2o 12 Inch (30cm) Long by 50mm Diameter Airstone Cylinder Bubbler Bar, Large Air Stone Diffuser for Water Garden Koi Fish Ponds or Fish Tanks, Saltwater, Marine Aquariums and Hydroponic Use" brand: "pond h2o" price: "€ 65.22" currency: EUR in_stock: false reviews_count: 8 category: "Pond H2o" url: https://www.desertcart.hr/products/13020168-pond-h2o-12-inch-30cm-long-by-50mm-diameter-airstone store_origin: HR region: Croatia --- # Fine bubbles from 1000Β°C sintering 12-inch length for max coverage Stainless steel nipple for durability Pond H2o 12 Inch (30cm) Long by 50mm Diameter Airstone Cylinder Bubbler Bar, Large Air Stone Diffuser for Water Garden Koi Fish Ponds or Fish Tanks, Saltwater, Marine Aquariums and Hydroponic Use **Brand:** pond h2o **Price:** € 65.22 **Availability:** ❌ Out of Stock ## Summary > πŸ’§ Elevate your aquatic ecosystem with the ultimate bubble boost! ## Quick Answers - **What is this?** Pond H2o 12 Inch (30cm) Long by 50mm Diameter Airstone Cylinder Bubbler Bar, Large Air Stone Diffuser for Water Garden Koi Fish Ponds or Fish Tanks, Saltwater, Marine Aquariums and Hydroponic Use by pond h2o - **How much does it cost?** € 65.22 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/13020168-pond-h2o-12-inch-30cm-long-by-50mm-diameter-airstone) ## Best For - pond h2o enthusiasts ## Why This Product - Trusted pond h2o brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Maximized Oxygenation:** 12-inch large diffuser bar ensures superior aeration for vibrant aquatic life. - β€’ **Durable & Washable Design:** Heavy-duty, high-temperature sintered construction guarantees long-lasting performance and easy maintenance. - β€’ **Universal Fit & Easy Setup:** Compatible with 1/8" to 5/16" airline fittings for seamless integration with your existing air pump. - β€’ **Precision Bubble Technology:** Sintered at 1000Β°C to produce ultra-fine bubbles that boost water oxygen levels efficiently. - β€’ **Versatile Aquatic & Hydroponic Use:** Perfect for koi ponds, marine aquariums, and hydroponic systems to invigorate fish and plant health. ## Overview The Pond H2o 12 Inch Airstone Cylinder Bubbler Bar is a heavy-duty, 30cm long diffuser designed to maximize aeration in fish ponds, aquariums, and hydroponic setups. Featuring stainless steel fittings and sintered at 1000Β°C for ultra-fine bubbles, it enhances oxygenation and water circulation, promoting healthier fish and plants. Compatible with standard airline tubing, this durable and washable airstone is a must-have for any serious aquatic enthusiast. ## Description Requires Airpump to operate, gives large volume of diffused Air Stainless Steel nipple. 12 Inches or 30cm Long. Sintered to 1000 Degrees for Fine Bubbles. 5/16th(8mm) Airline Fittings. Heavy Duty Bar Air Stone to successfully keep aquatic fish and plants aerated. Very durable, washable and sintered by high temperature. Creates water currents and underwater scenes, bubbles in fish tanks, aquariums, and ponds while attached to an air pump(air pump is not included). The airstones add oxygen to the water, as the bubbles aerate the water they also help circulating hydroponic nutrients invigorating the roots of plants and boosting healthy growth. Making for HAPPY fish... PondH2o 12 Inch (30cm) Airstone Cylinder Bubbler Bar, Large Air Stone Diffuser for Water Garden Koi Fish Ponds or Fish Tanks, Saltwater, Reef, Marine Aquariums and Hydroponic Use Review: Worth to buy this product. - Great product. Used on my aquarium. Review: Good product - When all was said and done, it worked perfectly. I wanted fine bubbles from my heavy duty aerator during the summer months. The connections had to be bought separately though which I found at Home Depot for less than 15$. It’s a good product, heavy duty and created exactly what I wanted. ## Features - 12 Inch Long by 50mm Diameter - Large Volume Airstone. Requires Airpump to operate, gives large volume of diffused Air Stainless Steel nipple. 12 Inches (30cm) Long by 50mm Diameter - Sintered to 1000 Degrees for Fine Bubbles to increase aeration efficiency. Easy to Use - Fits 1/8th (4mm) to 5/16th (8mm) Airline Fittings - Very durable, washable and sintered by high temperature. Creates water currents and underwater scenes, bubbles in fish tanks, aquariums, and ponds while attached to an air pump(air pump is not included). The airstones add oxygen to the water, as the bubbles aerate the water they also help circulating hydroponic nutrients invigorating the roots of plants and boosting healthy growth. Making for HAPPY fish...Bumper bars keep stone off bottom of pond - Long Lasting PondH2o Quality ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00QQDJB5K | | Best Sellers Rank | #330,984 in Pet Supplies ( See Top 100 in Pet Supplies ) #1,684 in Aquarium Air Pump Accessories | | Customer Reviews | 4.0 4.0 out of 5 stars (51) | | Is Discontinued By Manufacturer | No | | Item Weight | 2.2 pounds | | Item model number | Asc888 | | Manufacturer | United Aquatics, LLC. | | Package Dimensions | 13.78 x 3.15 x 3.15 inches | ## Images ![Pond H2o 12 Inch (30cm) Long by 50mm Diameter Airstone Cylinder Bubbler Bar, Large Air Stone Diffuser for Water Garden Koi Fish Ponds or Fish Tanks, Saltwater, Marine Aquariums and Hydroponic Use - Image 1](https://m.media-amazon.com/images/I/41VPNEeRr6L.jpg) ![Pond H2o 12 Inch (30cm) Long by 50mm Diameter Airstone Cylinder Bubbler Bar, Large Air Stone Diffuser for Water Garden Koi Fish Ponds or Fish Tanks, Saltwater, Marine Aquariums and Hydroponic Use - Image 2](https://m.media-amazon.com/images/I/81KHcosNpRL.jpg) ![Pond H2o 12 Inch (30cm) Long by 50mm Diameter Airstone Cylinder Bubbler Bar, Large Air Stone Diffuser for Water Garden Koi Fish Ponds or Fish Tanks, Saltwater, Marine Aquariums and Hydroponic Use - Image 3](https://m.media-amazon.com/images/I/8173rtA7rlL.jpg) ![Pond H2o 12 Inch (30cm) Long by 50mm Diameter Airstone Cylinder Bubbler Bar, Large Air Stone Diffuser for Water Garden Koi Fish Ponds or Fish Tanks, Saltwater, Marine Aquariums and Hydroponic Use - Image 4](https://m.media-amazon.com/images/I/81-8TQETRIL.jpg) ![Pond H2o 12 Inch (30cm) Long by 50mm Diameter Airstone Cylinder Bubbler Bar, Large Air Stone Diffuser for Water Garden Koi Fish Ponds or Fish Tanks, Saltwater, Marine Aquariums and Hydroponic Use - Image 5](https://m.media-amazon.com/images/I/41u9emvgUlL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Worth to buy this product. *by H***G on August 14, 2020* Great product. Used on my aquarium. ### ⭐⭐⭐ Good product *by S***O on July 31, 2021* When all was said and done, it worked perfectly. I wanted fine bubbles from my heavy duty aerator during the summer months. The connections had to be bought separately though which I found at Home Depot for less than 15$. It’s a good product, heavy duty and created exactly what I wanted. ### ⭐ Received broken *by A***R on June 30, 2016* Received a broken unit ## Frequently Bought Together - Pond H2o 12 Inch (30cm) Airstone Cylinder Bubbler Bar, Large Air Stone Diffuser for Water Garden Koi Fish Ponds or Fish Tanks, Saltwater, Reef, Marine Aquariums and Hydroponic Use - Aquascape Pond Plant Potting Media, Nutrient-Rich Aquatic Soil for Water Gardens, Supports Strong Root Growth, 215 Cubic Inches, 89002 - Aquascape Faux Log Fish Cave, Predator Control and Decorative Shelter for Koi and Fish, Ponds, Aquariums, and Terrariums --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/13020168-pond-h2o-12-inch-30cm-long-by-50mm-diameter-airstone](https://www.desertcart.hr/products/13020168-pond-h2o-12-inch-30cm-long-by-50mm-diameter-airstone) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-25*