Series 1 Jumbo Micro-Fog Lubricator with Sight Glass, 275 SCFM Flow Rate, 250 psi Pressure, Metal Bo, Dixon, Mfr#: L17-A00A$437.99+
Compact Sight Glass, 4 in Sight Dia, Clamp, 4.34 in L, 100 psi Working, 316L SS, Dixon, Mfr#: B54BMPS-R400$828.99+
Sight flow indicator, 1in body, 4.875in L x 2.750in H 124 x 70 mm, 5.1 lb 2.3 kg, Dwyer Instruments, Mfr#: SFI-700SS-1$1,480.99+
Jumbo Compressed Airline Filter with Automatic Drain and Pyrex Sight Glass, 1-1/2 in Port, 425 SCFM, , Dixon, Mfr#: F17-B00A$532.99+