Sitemap | Dometic World

DHT-L Series SeaLand Holding Tanks

Ready-To-Install Convenience

"No discharge" is no problem with DHT-L pre-assembled SeaLand holding tank systems.

With five popular tank sizes, boatbuilders can easily outfit any boat in their line with a high-quality holding tank, and assure their customers of long-lasting performance and efficiency.

Available in capacities of 42, 60, 87, 110, and 136 liters (11, 16, 23, 29, and 36 gallons), SeaLand DHT-L Series holding tanks are pre-plumbed with inlet and discharge fittings, a vent fitting, inspection port and pressure relief valve.

Each "plug 'n play"-style tank is pressure tested and ready to install - just bolt it down and fasten the hoses.


  • Pre-assembled with all required fittings and ports.
  • Five capacities: 42, 60, 87, 110, and 136 liters.
  • Heavy-duty polyethylene tank prevents odors from escaping.
  • Resistant to implosion from high-powered dockside vacuum pumps.
  • Extra-thick tank walls withstand high pressure.
  • Specially designed discharge fittings are clog-free.
  • Five-year limited warranty against cracking or leaking.

Dometic Corporation, Sanitation Division    Phone +1 330 496 3211 | Fax +1 330 496 3097 | Email sealand@dometicusa.com