wd3883 replacement oil filters for DELUXE WD388. See cross reference chart for DELUXE WD388 and more than 200.000 other oil filters.Keston+C36+Combi+Manual+WD388!3!2010 - Free download as PDF File (.pdf), Text File (.txt) or read on for free. The document provides installation and servicing instructions for the Keston C36 bi and C36P bi boilers.