These gauges give a clear reading of tank contents. Unbreakable sight tube supplied in lengths to suit tank depth. Fitted with a self-closing valve designed to comply with BS 799 Part 2. The unit has been accepted by major oil companies.Specification :Top cap : protection against insects and dustTop clip : to provide upper support for sight tube, (supplied with self tapping fixing screws)Sight tube : clear P.V.C.Coupler : a push fit onto the sight tube shield to cover the valve nippleOperation : push button to indicate oil levelTank connection : union complete with locknutUnion size : 1/2" BSP M
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