Pro-Clean Gravel Washer & Siphon Kit - Small/Tall The Python Pro-Clean Gravel Washer & Siphon Kit is perfect for the beginner and experienced hobbyist alike. It effectively separates and removes debris from your aquarium while you perform routine water changes. The Python Pro-Clean is constructed using only the highest quality materials. The Small/Tall size is ideal for nano aquariums. 1" x 20" Tube / 6 ft Hose