MEC 1-3/4 in. x 1-3/4 in. MEC Gas Swivel Fill Check Adapter Fitting

Item # 533223 | MEC Part # ME571 | UPC Code 076335053547 | UNSPSC Code 40171700
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Product Overview

These adapters are intended to be attached to the LP-Gas delivery truck hose outlets. They feature minimal ow restriction which allows for fast delivery while providing an integral check valve to prevent further product loss if the tank fill valve fails to close. In the event the tank fill valve should fail, leave the fill adapter connected to the fill valve and disconnect the filler hose end valve. Then place the filler valve cap onto the fill adapter. The tank fill valve should be repaired immediately.

  • ME571 has a floating internal seat design which allows check to swivel freely when installed on hose end valve
  • 1-3/4 in. filler valve F. Acme connection
  • 1-3/4 in. hose end M. Acme connection
  • Standard handle style and brass construction

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 -


Filler & Transfer Connectors Type
Acme Filler Connectors
General Material
HVAC Product Type
Manufacturer Warranty
5 years from the date of manufacture
Product Depth (in.)
Product Height (in.)
Product Length (in.)
Product Weight (lb.)
Product Width (in.)
1.75 in. x 1.75 in.


5 years from the date of manufacture