ITEM NAME:2pcs Aquarium Tank Cylinder Adapter Converter for Co2 Regulator (G5/8 to W21.8 Description: Material: 304 stainless steel 2 size available: W21.8 to G5/8; G5/8 to W21.8 W21.8 to G5/8: Inner Thread: W21.8, Outer Thread: G5/8 G5/8 to W21.8: Inner Thread: G5/8, Outer Thread: W21.8 Package Includes: 2 Piece Cylinder Adapter(G5/8 to W21.8 and W21.8 to G5/8) SKU: DMO0015427919435615.2 size available: W21.8 to G5/8; G5/8 to W21.8. W21.8 to G5/8: Inner Thread: W21.8, Outer Thread: G5/8. G5/8 to W21.8: Inner Thread: G5/8, Outer Thread: W21.8. 2 Piece Cylinder Adapter(G5/8 to W21.8 and W21.8 to G5/8).
