PARKER Sight Glass, Moisture Indicator, 1/2<EndFraction/>M x 1/2<EndFraction/>M Fitting Size, Flare - 4E923|PSG-4 - Grainger
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PARKER Sight Glass, Moisture Indicator, 1/2 x 1/2 Fitting Size, Sweat, 4 22/25 in Overall Length (In.) - 4E924|PSG-4S - Grainger
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