This item is currently out of stock.
The HT387-RE is a direct-fit replacement holding tank sized at 64" x 22" x 8-1/2", holding 28 gallons. ICON preinstalls the 3" drain spigot and four level sensors so you're reconnecting existing plumbing rather than fabricating new fittings.
Match this tank's footprint and drain location against your existing tank before ordering, since holding tank shapes vary widely across RV brands and models.