This Micro Matic Nitrogen Regulator Retaining Nut is made out of chrome plated brass and is meant to serve as a spare or a replacement for Premium Plus Series Regulators. It uses CGA580 threading allowing it to attach to standard N2 tanks and is left hand threaded.
![Micro Matic Nitrogen Regulator CGA580 Retaining Nut [4201085] - Premium Plus Series](http://www.canuckhomebrewsupply.com/cdn/shop/files/22409-1-v2.jpg?v=1750790754&width=1946)
![Micro Matic Nitrogen Regulator CGA580 Retaining Nut [4201085] - Premium Plus Series](http://www.canuckhomebrewsupply.com/cdn/shop/files/22409-2-v2.jpg?v=1750790754&width=1946)
![Micro Matic Nitrogen Regulator CGA580 Retaining Nut [4201085] - Premium Plus Series](http://www.canuckhomebrewsupply.com/cdn/shop/files/22409-1-v2.jpg?v=1750790754&width=1445)
![Micro Matic Nitrogen Regulator CGA580 Retaining Nut [4201085] - Premium Plus Series](http://www.canuckhomebrewsupply.com/cdn/shop/files/22409-2-v2.jpg?v=1750790754&width=1445)