Both End Male Quick Disconnect 8mm Adaptor Stainless Steel Double Male Fill Nipple HPA High Pressure Accessories
Aliexpress UK
M3 M4 M5 M6 M8 M10 M12 M14 M16 304 A2 Stainless Steel Thread Adapter Male to Male Double Head Transfer Screw Bolt
Aliexpress UK
Both End Female Quick Disconnect Adaptor Stainless Steel Double Female 8MM Fill Nipple HPA High Pressure Accessories
Aliexpress UK