MEC Excess Flow Pol Adapter 7/8 in. Hex Nut 1/4 in. Mpt

Item # G1690 | MEC Part # ME1690 | UPC Code 815505010450 | UNSPSC Code 40171700
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Product Overview

The ME1690 Pol adapters 1/4 in. male pipe fitting fits the inlet of all standard low pressure regulators. The Pol nut features a left hand thread and fits all standard LP gas cylinder valves. The excess flow Pol is different than standard POL fittings because it has a check valve inside. If gas surges through the fitting, the check valve will check. It does not shut off the gas but it does restrict the gas flow. Should an accident occur that would break the fitting off ahead of the regulator, or sever the hose the check valve would safety restrict the flow of escaping gas.

  • Fits multiple makes and models (contact seller with your vehicle for fitment compatibility information)
  • Machined of solid brass
  • 7/8 in. Hex nut
  • 1/4 in. MNPT
  • Excess flow Pol
  • Caution: when installing the 1/4 in. male NPT into regulator inlet, it is recommended that teflon tape be used instead of the thread sealant, If thread sealant is used, extreme caution should be taken that no thread sealant that no thread sealant gets in the regulator inlet

Proposition 65 Information

Prop65 Warning Icon WARNING: These products contain a chemical known to the state of California to cause cancer and birth defects or reproductive harm. For more information go to


Adapter & Connector Type
Excess Flow Adapter
Connection 2
POL, With Excess Flow
Fitting 1 size
Fitting 2 size
Fitting or Connector Type
Manufacturer Warranty
5 years from manufacture date
Pipe or Fitting Product Type
Fittings & Connectors
POL Fittings & Adapters Type
Excess Flow Adapter
Product Depth (in.)
Product Height (in.)
Product Length (in.)
Product Weight (lb.)
Product Width (in.)
0.875 in. x 0.25 in.


5 years from manufacture date