ITEM NAME:15 Pieces Air Pump Check Valves One Way Check Valve Device Fish Tank Aquari C5K6 15 Pieces Air Pump Check Valves One Way Check Valve Device Fish Tank Aquari C5K6 total length of 53 mm/ 2.08 inch, connector part of 13.5 mm/ 0.53 inch, diameter of 4 mm/ 0.15 inch, choose it after measuring your fish tank size please; Air power: 2 - 4 w Instruction: necessary equipment for fish tank and aquarium to avoid retrograde water flow by difference of water pressure when electricity is cut off, lower the danger of tank damage when check valves are applied 3.2 g, durable and lightweight, ease of installation and dismantle, can be equipped with your fish tank for a long time Applications: fit for fish tank and aquarium of 4 mm type connectors, also you can find other usages of it; Note: small parts, choking hazard, take them away from your kids and pets Quantity: 15 pieces of air pump check valves in total, sufficient for you to use and change in repairing work, no need to worry about quantity lacking Material: plastic Color: black Total length: 53 mm Length of connector part: 13.5 mm Warning: small parts, choking hazard, keep them away from your kids and pets please. Package Contents: 15 * Air pump check valves
