Tired of replacing those suction cups on your maxijets? It's not only expensive but can cause damage to your tank when your pump falls down. AlgaeFree just came out with a way to solve this problem. 2 new magnet holders that work with Maxijet, SEIO and Tunze Streams. Sure Grip 100 is recommended for aquariums with glass thicknes up to 3/4". Sure Grip 100 is Compatible with following pumps: - Seio Super Flow M620, M820, M1100 and M1500 (Glass thickness 3/4” or under) - All Tunze Streams ( Glass thickness 3/4” or under) - Maxi-Jets 400, 600, 900, 1200 (Glass thickness 5/8" and 3/4")