Feature: 1. 1. Multi-function: It can be used for absorbing gravel in the water tank, scraping algae, cleaning sand and gravel, absorbing feces and changing water quickly. A set of equipment to solve the daily problems of the tank, so that the aquarium is always clean and beautiful. 2. 2. Suitable for different fish tanks: This aquarium cleaning tool kit contains 2 inlet pipes (2*15.7 inches), which can be extended and combined together, can be connected and used according to your fish tank size and water volume. 3. 3. Easy to use: The handle is specially designed to be easy to press, the comfortable grip makes it easy to press down without effort, just squeeze the trigger a few times and the water will flow out naturally. Specification: Material: PE + PVCOperation method: Manual pneumatic trigge Package List: Pneumatic trigger*1Water inlet pipe*2Pipe connector*1PVC water outlet hose*1Scraper*1Water clip*1Bucket clip*1 Note: The best cleaning angle is a 45° tilt.4. How it works: The siphon works by gravity, as long as the drain bucket is lower than the tank, it will work, an 82 inch hose with a water flow controller can be attached to the bucket to prevent water from splashing out.5. Accessories include: 2*water inlet pipe (15.7in), 1*pipe connector, 1*82In PVC outlet hose, 1*scraper, 1*water flow clip, 1*bucket clip.