1 Piece Cylinder Adapter. We'd like to settle any problem in a friendly manner. Material: 304 dtainless steel; 4 size available: W21.8 to G5/8; G5/8 to W21.8; M22x1.5 to G5/8; G5/8 to M22x1.5. G5/8 to M22x1.5: Inner Thread: G5/8; Outer Thread: M22x1.5.
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