... Product Description 3pcs red,yellow,blue charging hosesa sight glass brass testing manifold bodydesigned to meet 1/4"SAE requirement for ... charging hoses. Working pressure 500PSI Burst 2500PSI.A sight glass brass testing manifold body. Designed to meet 1/4"SAE ... charging hoses. Working pressure 500PSI Burst 2500PSI.A sight glass brass testing manifold body. Designed to meet 1/4"SAE requirement ...