Dometic (logo) Sanitation Systems

SeaLand® Holding Tank Systems (HTS)

20HTS-HORIZ

Complete, reliable holding tank systems for use with marine toilets.

Virtually any boat with room for a holding tank can now incorporate the advantages of Dometic’s premium-quality Holding Tank Systems.

Leak-proof Design

Top-mounted hose connections eliminate standing liquid in discharge hose, preventing odor permeation through hose.

Odor-free, Highly Durable Tank

100% virgin polyethylene resin with extra-heavy wall thickness prevents odor permeation and resists corrosion.

Implosion Protected

TankSaver® vacuum relief valve prevents damage from dockside pumps that use very high levels of vacuum.

ISO/USCG Compliant

SeaLand holding tanks fully comply with the ISO 8099:2000(E) standard and applicable U.S. Coast Guard requirements.

HTS-T Systems

HTS-T systems provide all the components needed for convenient storage and discharge of wastewater.

40HTS-T 28HTS-T 40HTS-T

HTS-Basic Systems

For boats that need only a holding tank, SeaLand HTS-Basic tanks deliver all the strength, odor-proof and leak-proof advantages of our other HTS models.

20HTS-HRZ 12HTS-VRT 12HTS-HRZ 15HTS-HRZ 20HTS-VRT 20HTS-HRZ
30HTS-HRZ 40HTS-HRZ 55HTS-HRZ

Holding Tank System Requirements (applicable models):

Plumbing Connection
Inlet fitting size: 1-1/2 in. (38.1mm)
Outlet fitting size: 1-1/2 in. (38.1mm)
Vent outlet size: 5/8 in. (15.9mm)
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