Aquarium Equipment -10 Pcs Plastic Aquarium Fish Tank 2 Way Air Pump Control Pumps Yellow Highlights Generic Brand 10 Pcs Plastic Aquarium Fish Tank 2 Way Air Pump Control Pumps the yellow air pump Description: 100% brand new and high quality. Hard plastic material and 2 way design. It distributes air to each aquarium as desired. Designed to adjust the amount of airflow entering the aquarium. Easy to operate and the aquaculture air valve can be connected to an aquarium tube. Specification: Material: Plastic Color: Yellow, Gray Yellow Size: Length: Approx. 4cm/1.57inches; Width: Approx. 2cm / 0.79 inch Gray Size: Length: Approx. 3.8cm/1.50inches; Width: Approx. 3.7cm / 1.46inches Package includes: 10 pieces Aquarium Valve. Note: The item size you received might be slightly different from the above size. Due to the light and screen setting difference, the item's color may be slightly different from the pictures