Change Notification: 5″ Threaded Lids Vented & Non-Vented


Den Hartog Industries is proud to announce a change to our 5” lid family.  This newly designed family is created in a faster, more efficient process, while still maintaining  our top-notch quality!  Lid assembly is 6.6” in overall diameter and 2” high.


  • Optional EPDM gasket is available
  • Lid features 6” x 3” TPI R.H. Buttress style threads
  • Lid is injection molded from polypropylene
  • Various lanyard options available

 *After we utilize the existing inventory of current lids, all Ace Roto-Mold tanks using 5” spin-on lids will transition to this new style!

 Visit our Lids page for product specifications.