US Tape 20oz Plumb Bob | Brass | 58899 US Tape Oil Gauging Plumb Bobs are designed for submersion in oils and viscous liquids to determine verticals. 20oz Brass Plumb Bob Innage English

Lufkin 20 oz Inage Plumb Bob | Brass | Cylindrical Lufkin's 20 oz Plumb Bob is made of solid brass and features a tapered point tip. Use with Lufkin 25' CN1290SF590N and 33' CN1291SF590N Complete Oil Gauging Tapes