Set of 4 Oil Level Sight Glasses M24×1.5 Threaded Compatible with Tanks, Gearboxes, Pumps, Compressors

M24×1.5 Compatibility — Compatible with oil reservoirs, gearboxes, pumps, and air compressors using M24×1.5 threaded ports; quick visual check in the workshop, factory, or garage.
Oil Level Indicator Window — Clear plastic lens showing the presence of oil and the approximate level at a glance, for checks and preventative maintenance without opening the reservoir.
M24×1.5 Threaded Inspection Plug — Screw-on design for standard M24×1.5 holes; low profile for tight arrangements; sealed body reduces seepage with a suitable sealant.
Machine Maintenance Accessory — Helps monitor filling to prevent oil starvation or overfilling; For boxes, pumps and compressors in industrial lines, workshops, farms and small technical rooms. Easy installation — clean the opening, apply suitable sealant, tighten by hand then with a wrench; position the window perfectly vertical for reliable reading; ideal for inspections at home, in the garage or in the factory.