Aquarium ISTA CO2 air transparent silica gel sorft tube 4mm never Ageing getting hard aquarium water plant tank

Description

Feature: The best quality CO2 air soft tube 4mm diameter suitable for all kinds of CO2 air pump system Special silica gel material, not hard, but can bear high pressure Never getting hard long time use The tube not the cheapest, but quality the best Package include: 2m or 5m length for choice