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Back up ring used behind o-ring 37H8695 in high pressure valve chest filter housing.
Fitted at the bottom of the housing along with o-ring 37H8695.
It is recommended that you change both 37H8695 and AAU7171 when fitting a new high pressure filter CTJ4348.
For a video showing how to fit this filter see our You Tube channel -Â click here
Original equipment manufacturers names and parts numbers are quoted for reference purposes only and are not intended to suggest that our replacement parts are made by the original equipment manufacturer.
Original equipment manufacturers names and parts numbers are quoted for reference purposes only and are not intended to suggest that our replacement parts are made by the original equipment manufacturer.
Product images are for illustrative purposes only and may not always be an exact representation of the product.
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