Description
JZMYXA One Way Non-Return Check Valve (20 Pieces) Total length: 2.1 In/53.6 mm. Connector length 0.53 In/13.5 mm. Connector dia 0.16 In/4mm. 20 pieces. Total length: 2.1 In/53.6 mm, Connector length 0.53 In/13.5 mm, Connector dia 0.16 In/4mm. Material: Transparent plastic, net weight 0.14 oz/4 g, strong and durable. Fit for common aquarium air pump or DIY CO2 system accessories etc, but please do not use them with Professional co2 system.
