Catalog number: WR0425 Features: ●Prevents dimensional changes in the air tube from the inside, so even extremely soft air tubes can be used with one-touch fittings. ●Used when running water through an air tube connected to a one-touch fitting. Specifications: ●Compatible tube outer diameter (mm): 4 ●Total length (mm): 18 ●Compatible tube inner diameter (mm): 2.5 ●Made in an ISO9001 certified factory ●Made in an ISO14001 certified factory Material/Finish: ●Stainless steel (SUS304)
