I would check with Ronco Plastice http://ronco-plastics.com/ the original maker of your tank. If you do not see the tank number on their site call them. the total cost + shipping may well be better than CD.
When I replaced my holding tank the price when I called them was much better than the published price on their WEB site, your mileage may very.
Good luck
Steve
When I replaced my holding tank the price when I called them was much better than the published price on their WEB site, your mileage may very.
Good luck
Steve