Made in USA | MKT Fastening LLC Concrete Wedge Expansion Anchor: 1/2" Dia, 5-1/2" OAL, 2-1/4" Min Embedment - 1/2" Drill, 4"

Bye bye, ammonia! These pads work hard to remove excess harmful or toxic ammonia from your tank. Easy peasy installation. No need to fumble around with scissors or measuring tape - these pads are pre-cut for your convenience. The secret to optimal performance. For the best results, we recommend replacing these pads every 2 to 3 weeks. Safe and reli... moreable. Trust us, we take water quality seriously. That's why our pads are designed to be safe and effective for your aquatic pals. Variety is the spice of life. If you're dealing with other water issues, check out our Carbon and Phosphate Remover pads as well. | Aqueon Ammonia Cartridge Mini Pad, 10