The Porter Instrument MXR-1 is a rear flex/AVS (Adjustable Valve System) component designed for use in nitrous oxide delivery systems. This unit is configured without the prein feature, offering a streamlined option for compatible setups. It is a genuine Porter Instrument part, ensuring reliable performance and fit.
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Sorted by lowest price · Add now, sign in at checkout


The Porter Instrument MXR-1 is a rear flex/AVS (Adjustable Valve System) component designed for use in nitrous oxide delivery systems. This unit is configured without the prein feature, offering a streamlined option for compatible setups. It is a genuine Porter Instrument part, ensuring reliable performance and fit.
2 vendors · 1 in stock
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