GCE Argon Single Stage 0-30 lpm flow gauge regulator - Bottom Entry
SmartControl Argon Pressure Regulator - S2160010
A high quality alternative to many regulators where manufactures include a 'free' regulator with a machine. The bottom inlet is designed for use with any top outlet bottle such as many BOC bottles. They may also be used in preference if the side inlet regulator protrudes too far for your liking.
While the reg says argon this does also include Argon Mix gases so if you need a MIG welding regulator this is the correct reg for your needs.