Aqueon Clear Silicone Aquarium Sealant Caulking Gun Tube 10.3 oz Part 100165010
 
High quality silicone sealant
100% silicone
Non-Toxic Suitable for freshwater and saltwater aquariums
Won't crack, dissolve or shrink
Provides a watertight seal / waterproof seal stops leaks
 
*Note* - CAULKING GUN NECESSARY FOR USE NOT INCLUDED