Material: 316l SST with electropolish finish, ra 32 or better, inside & out Dimensions: harvest tube (3/8" od) - 1" above slug, 8 3/8" insertion length Addition tube (1/4"od) - 1" above slug, 2 21/64" below Vent tube (1/4" od) - 1" above slug, .975" below Supply with 45mm pp blue open top screw cap & white silicone gasket