24 pt bottles of black gold vacuum pump oil. Black Gold Vacuum Pump Oil is the gold standard in vacuum pump care. For use in any vacuum pump, Black Gold is extremely pure and non-detergent. Our Black Gold is hydro processed, meaning it goes through a series of catalytic steps rendering the oil extremely refined, more viscous, and more stable. The result is clear mineral oil which will alert you to contamination sooner as it becomes cloudy or milky. In extreme temperatures, the oil will be more resistant to contaminants. We still recommend, however, that the oil be changed after every evacuation for maximum performance and pump efficiency. The best test to see if your oil is contaminated is through a micron gauge. With a leak-free system, if your DV-22N micron gauge is still not reading a deep vacuum, the oil is too contaminated and should be changed. If the micron gauge pulls down to about 50 micron the oil is good.

Sid Harvey Item #:M4-83A: Replaces Part #:'s : 41225,
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JB Industries M4-83A

JB Industries DV-285N Vacuum Pump Platinum 10 CFM 2-Stage 115 VAC,
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JB Industries DV-4E Vacuum Pump Platinum 4 CFM 2-Stage 115 VAC,
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JB Industries MR-505 PisTon with Seat and O-Rings for All JB Manifold Models Except Zeppelin 4-Valve Models (Use MR605) by JB (MR505)

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  JB Industries MR-505

JB Industries Zeppelin Premium Manifold Rebuild Kit, for Use With Zeppelin Premium two valve Zeppelin manifold rebuild kit. Fits both aluminum and brass two valve Zeppelin models. Includes two handwheels with screws, two stems, two nuts, two pisTons with seats, and O-rings.,