The Comet 18090006 is a genuine OEM oil level sight glass designed for a wide range of Comet agricultural sprayer pumps. Featuring a 3/8" thread and a 17 mm wrench size, this sight glass allows for easy monitoring of the oil level, ensuring proper pump lubrication and longevity. It has a total length of 19 mm and weighs approximately 0.01 kg. This essential component is compatible with numerous Comet pump models including APS series (APS41, APS51, APS61, APS71, APS96, APS101, APS121, APS141, APS151, APS166, APS201, APS251) and BP series (BP125, BP151, BP171, BP205, BP235, BP280, BP350, BP405, BP450, BP505, BP600, BP750, BP1000, BP1050, BP1200, BP1500, BP1800, BP2000, BP2200, BP2500, BP2800, BP3000, BP3500, BP4000, BP4500, BP5000).