Converts SodaMaker Thread to DIN 477 / JIS M22-14 / BS 341 No. 8 / W21.8-14 / .860" x 1/14(covers UK, Europe and Asia). Adjustable valve pin ensures compatibility with any cylinder valve variation. Material: Brass Innter thread: W21.8-14 Outer thread: TR21*4, SodaStream thread,only fit picture demonstrated Soda Water thread