HT630ED – 18.5″ x 22.5″ x 6″ – 8 US Gallon Capacity.
Left End or Bottom Drain – RV waste holding tank, available with a 3″ spigot fitting and 4 level sensors installed. Constructed of tough ABS plastic for long service life. All seams are solvent welded and have a 1 1/4″ mounting flange.
This tank typically ships within 2 business days.
Looking to mount a toilet directly on top of this tank? Take a look at the re-enforced version: Holding Tank Bottom Drain HT630BSBD.
Before You Order
Verify that the tank-only listing includes the components you need, and match the 22.5 x 18.5 x 6 inch dimensions and drain configuration to your RV before ordering.
Frequently Asked Questions
What does tank only indicate in the product title?
The product title identifies this listing as the tank only option.
What size is the tank?
The source lists 8 US gallons and dimensions of 22.5 x 18.5 x 6 inches.






