Auto Air Conditioning Tools > Manifold Gauge Manifold Gauge Set Application:R-22, 404a, 407c, HFC-134a 501051 Add to Inquiry Cancel Manifold Gauge SetConnection:1/4SAE Application:R-22, 404a, 407c, HFC-134aFeatures:High quality aluminum alloy valve body. Independent control in evacuation and filling. Gentle and comfortable design hand wheel structure. Prevalent streamline design pressure gauge. Durable product quality.