Cap 4″ Inspection Point

This inspection cap is a locking retrofit cap which can be fitted to the 4" inspection point on all oil storage tanks.

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  • Description

    This inspection cap is a locking retrofit cap which can be fitted to the 4" inspection point on all oil storage tanks.

    Generally, this cap is used to replace either the black 1/4 turn locking cap or the 4″ black screw cap with a female thread. This cap is supplied with fitting instructions and is now supplied as standard on all Harlequin oil tanks.

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