PENN-PLAX presents the Small World Fishbowl Under-Gravel Filter Kit. This kit is specifically designed for all drum or round bowls with a 4" or larger opening. If filter plate does not fit through the opening, you can break away the outer ring from between 2nd and 3rd levels, allowing for a better adjustments. Larger Base Diameter with outer ring is 5" / Smaller Base Diameter with inner ring is 4". Air-Tech Pump: This Kit comes standard with an Air-Tech AT2K0 pump. In addition to being quiet, efficient, and reliable, this air pump is built with a strong motor that's made to last. With silicone polymer flappers, a thick cover, and raised rubber feet, this pump will remain in place. Top-Quality Carbon: Supercharged with scientifically formulated Carbon, the media cartridge in this kit absorbs ammonia, nitrites, nitrates, and phosphates in a fast and timely manner, along with removing harmful chemicals and toxins, clearing up discolorations, and reducing foul odors from your fishbowl. Bio Floss: In addition to the Carbon, the included media cartridge also contains Bio Floss for physical filtration of larger particulate matter, and biological filtration that optimizes the colonization of anaerobic bacteria. Comes with Everything You Need: This Kit comes with an Air Pump (3" x 2" x 1.75"), Air Tubing, Under-Gravel Filter with Adjustable Base, a Disposable Filter Media Cartridge (0.9" x 0.9" x 2.4"), an Air Stone, and an Adjustable Flow Valve. Cleaning & Maintenance: Before placing into your fishbowl, please briefly rinse the filtration unit with warm water in order to remove Carbon dust. If not done before installation, the water could initially become dark or cloudy. For best results, the disposable media cartridge should be replaced every 2 – 4 weeks, ensuring a crystal clear and healthy environment for your fish.
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