TERAPUMP TRFTCLN Original Siphon Vacuum Aquarium Gravel N Sand Cleaner (Long Nozzle) / Pump (Short Nozzle) with Water Flow Controller - BPA Free BEWARE OF COUNTERFEIT SELLERS: Do not buy from SOJITEKS / Terapump Direct / Tekzz / Marketing Allegiance LLC / Kingiht's Necessities / Kabble, They are a CHINESE Seller who sells countefeit Low Quality pumps Don't be fooled by Counterfeit products this is the original Aquarium Gravel Cleaner by TERAPUMP. Brand New Packaging to combat Counterfeit Sellers! Packaging will have model number and Brand not Generic Packaging! Two Types of Nozzles: Shorter Nozzle is for drainage & The Longer Nozzle is for cleaning fish leftover food, droppings and fine gravel / Takes the Waste out while Replacing the Water; Will not Hurt any Aquarium Life when in use Patented Unique Pump Filter Allows dirt and Sand to be Discharged along with water Hand Pump to Initiate the Siphon to Start Transferring Liquid from One Receptacle to Another Manually operated liquid transfer pump Portable, light weight and heavy-duty material Patented unique pump filter allows dirt in sand to be discharged along with water Doesn&#039;t hurt any Aquarium Life when in Use Removes waste while replacing the water Easily Empty Containers. User-friendly siphon work Place the <span class="a-text-bold"><span class="a-text-italic">intake nozzle</span></span> end into the aquarium and attach the it (using a <span class="a-text-bold"><span class="a-text-italic">suction cup</span></span>) to the glass. Squeeze the <span class="a-text-bold"><span class="a-text-italic">operation bulb</span></span> five to seven times. Water will start to flow out of the tank (aquarium), allowing draining and cleaning. For smooth flow, water level of the aquarium tank must he higher than the end of <span class="a-text-bold"><span class="a-text-italic">discharge hose</span></span>