Comparison : |
Item # HA150AL, 1 1/2 x 1 1/2 Inch (in) Size Hard Coat Aluminum Type HA Hydro Adapter Cam and Groove Coupling with NST Fire Threads Item # HA250AL, 2 1/2 x 2 1/2 Inch (in) Size Hard Coat Aluminum Type HA Hydro Adapter Cam and Groove Coupling with NST Fire Threads
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