We apologize for the error in shipping the incorrect 32 x 54 x 9 inch holding tank instead of the 7-inch depth you ordered. This discrepancy was due to updated manufacturer part changes not communicated to us. We will provide a return shipping label for the incorrect tank. Unfortunately, the exact 7-inch tank you ordered is currently not available from the manufacturer and replacements will also come with the 9-inch depth.

As alternatives, we recommend two in-stock replacement tanks that may fit your needs:
- Alpha 35 Gallon Holding Tank (54" x 32" x 7.5") available for next-day shipping.
- Elkhart Plastics 42 Gallon RV Holding Tank (model EPI-4451-H1248), also ready to ship next day.

If these options do not work for your setup, you can browse our filtered selection of holding tanks with dimensions close to 54" x 32" and maximum 7" height on our Tank Finder page. Custom orders typically take 2-4 weeks for delivery. Please check the product links and select the best fit RV. Contact us if you need further assistance with returns or choosing the right tank.