ITEM NAME:10pcs Aquarium One Way Check Valve Non-Return 4mm Fish Air Pump ME BX Color: See pictures Great one way check valve for aquarium air pump; Protect you air pump by preventing aquarium water from back siphoning during a power outage; Small and compact It's easy to install Compatible with standard aquarium air pipe of 3.5-4mm inner diameter Size:Length 36mm / Internal Bore 3mm+ Quantity:10Pcs Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes:.Great one way check valve for aquarium air pump;. Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Color: See pictures. Size:Length 36mm / Internal Bore 3mm+.
