vertex reactor fitting

[mat20040]

I just bought vertex reactor uf 20, How do you attach the barb fitting to the reactor ? silicone ?
Thanks

[Reef Pilot]

I have a UF-20. The barb fits into the True Union connector and uses an O ring to seal. No silicone required.
http://www.vertexaquaristik.com/Products/MediaFilters/UniversalMediaReactors/UF20.aspx#