These fin set can be custom made to meet your needs; call or email us to provide specs.
Lightweight, corrosion-resistant
Assembles without tools
Fits through standard 24" manhole
Nine-fin design ensures testing accuracy
Open design allows gravel and debris pass-through
Field Verification
Cherne's Fin Style Deflection Gauges are designed to be field verified by inspectors without the use of a proving ring. Simply place two fins end to end as pictured to the right and measure the width. Add one inch to the mandrel and you have the outside dimension of the gauge. Using this method simplifies the inspector's job of verifying sizes on deflection gauges.
Shipping
Promag Enviro provides free shipping throughout Canada and the U.S.
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