HTS SeaLand® Holding Tank Systems
Odor-free, premium-quality performance
Boatowners can now realize the benefits of a user-friendly, properly-sized holding tank in virtually any Type III MSD system with this wide
selection of SeaLand holding tank systems. Both HTS-T and Basic series use top-mounted fittings and diptube discharge plumbing toprevent potential leaks. Multiple discharge outlets eliminate need for complex plumbing and extra discharge line connections.

HTS-T and Basic Series
SeaLand Holding Tank Systems
HTS-T models include T series discharge pump
Corrosion-proof, leak-proof, odor-proof – high-density
polyethylene tank construction

“Diptube-style” discharge fittings for thorough, leak-proof pump-out
All plumbing fittings are pre-tested
Easy to install – no solvent-bond connection requiredISO/USCG compliant tanks

28 HTS-T

Dimensions include
height of fittings andaccessories
10 HTS-T
Height: 13.25 in./635 mm Item: 322721012 – 12V
Width: 19.5 in./495 mm
Item: 322721024 – 24V
Length: 23.375 in./594 mm

28 HTS-T
Height: 19.5 in./495 mm
Width: 19 in./483 mm
Length: 30 in./762 mm

28 HTS-HL

Item: 322012812 – 12V
Item: 322012824 – 24V

40 HTS-T
Height: 20 in./508 mm
Width: 21 in./533 mm
Length: 35 in./889 mm

Item: 322014012 – 12V
Item: 322014024 – 24V

HTS-T Series SeaLand Holding Tank System Technical Specifications
MODEL

CAPACITY(GAL./LITERS)EMPTY WEIGHT(LBS./KG)

MAX. WEIGHT(LBS./KG)

OUTLETS (QTY)

VENT FILTER

10 HTS-T

10 / 38

18 / 8.2

98 / 40.92–

28 HTS-T

28 / 10640 / 18260 / 118

2included

40 HTS-T

40 / 151

44 / 20364 / 165

2includedAll HTS-T models shown here include SeaLand T-series discharge pump, DTM04 four-level tank monitor system, and TankSaver relief valve.
Available in 12 V and 24 V DC systems.
Specifications subject to change without notice.

HTS-T Series System Requirements

ELECTRICAL

Power draw (avg.)
Circuit breaker/fuse

INLET
PLUMBINGID

DISCHARGE PUMP*

DTM04 TANKMONITOR

6 amps/12 V DC
3 amps/24 V DC
10 amps/12 V DC
5 amps/24 V DC

0.15 amp/12 V DC
0.09 amp/24 V DC
1 amp/12 V DC
1 amp/24 V DC

1.5 in./38 mm sanitation hoseor PVC pipe

DISCHARGE
PLUMBING

VENT HOSE

ID

1.5 in./38 mm sanitation hoseor PVC pipe

Horizontal run

30 ft./9.1 m max. to discharge fitting

Vertical run

6 ft./1.8 m max. to discharge fittingID

5/8 in./16 mm sanitation hose

* Requires separate circuit breaker or fuse.
Specifications subject to change without notice.

HTS-Basic Series SeaLand Holding Tank System Technical Specifications
MODEL

CAPACITY(GAL./LITERS)EMPTY WEIGHT(LBS./KG)

MAX. WEIGHT(LBS./KG)

MODEL

CAPACITY(GAL./LITERS)EMPTY WEIGHT(LBS./KG)

MAX. WEIGHT(LBS./KG)

12 HTS-VRT

11 / 4220 / 9.1

108 / 49

28 HTS-HL

28 / 106

37 / 16.8261 / 118

12 HTS-HRZ

11 / 4220 / 9.1

108 / 49

30 HTS-HRZ

28 / 106

37 / 16.8

261 / 118

12 HTS-HL

12 / 45

22 / 10118 / 53.5

35 HTS-HL

35 / 132

38 / 17.2

318 / 144

15 HTS-VRT

15 / 57

25 / 11.3

145 / 65.8

40 HTS-HRZ

34 / 129

41 / 18.6

313 / 142

15 HTS-HRZ

15 / 57

25 / 11.3

145 / 65.8

50 HTS-VRT-HL

50 / 189

53 / 24453 / 205

20 HTS-VRT

18 / 68

27 / 12.2171 / 77.6

50 HTS-HRZ-HL

50 / 189

53 / 24453 / 205

20 HTS-HRZ

18 / 68

27 / 12.2

171 / 77.6

55 HTS-HRZ

55 / 208

53 / 24493 / 224

25 HTS-HRZ

25 / 94

31 / 14.1

231 / 10580 HTS-HRZ

80 / 302

54 / 24.5

694 / 315

HTS-Basic Series System Requirements
INLET
PLUMBING

ID

1.5 in./38 mm sanitation hoseor PVC pipe

DISCHARGE
PLUMBING

ID

1.5 in./38 mm sanitation hoseor PVC pipe

VENT HOSE

ID

5/8 in./16 mm sanitation hose

28 HTS-HL
Height: 14.25 in./362 mm
Width: 23.5 in./597 mm
Length: 35.25 in./895 mm
Item: 322800281

Specifications subject to change without notice.

12 HTS-VRTHeight: 17.75 in./451 mm
Width: 8.25 in./210 mm
Length: 24.5 in./622 mm
Item: 322840122

12 HTS-HL
Height: 12.25 in./311 mm
Width: 17.25 in./438 mm
Length: 30 in./762 mm
Item: 322800121

15 HTS-HRZ
Height: 15 in./381 mm
Width: 19 in./483 mm
Length: 22 in./559 mm
Item: 322840151

20 HTS-HRZ
Height: 14 in./356 mm
Width: 14.25 in./362 mm
Length: 28.25 in./718 mm
Item: 322840201

12 HTS-HRZ
Height: 10.75 in./273 mm
Width: 15.25 in./387 mm
Length: 24.5 in./622 mm
Item: 322840121

15 HTS-VRTHeight: 21.5 in./546 mm
Width: 12.5 in./318 mm
Length: 22 in./559 mm
Item: 322840152

35 HTS-HL
Height: 19.75 in./502 mm
Width: 14 in./356 mm
Length: 35 in./889 mm
Item: 322800351

30 HTS-HRZ
Height: 14.5 in./368 mm
Width: 20 in./508 mm
Length: 30 in./762 mm
Item: 322840301

40 HTS-HRZ
Height: 16 in./406 mm
Width: 21.75 in./552 mm
Length: 30 in./762 mm
Item: 322840401

Dimensions include
height of fittings andaccessories

50 HTS-VRT-HL
Height: 33.25 in./845 mm
Width: 19 in./483 mm
Length: 22 in./559 mm
Item: 322850501
20 HTS-VRTHeight: 16.75 in./425 mm
Width: 11.5 in./292 mm
Length: 28.28 in./718 mm
Item: 322840202

50 HTS-HRZ-HL
Height: 21.375 in./543 mm
Width: 22 in./559 mm
Length: 30.75 in./781 mm
Item: 322850502

25 HTS-HRZ
Height: 20.5 in./521 mm
Width: 17 in./432 mm
Length: 21 in./533 mm
Item: 322800251

DOMETIC CORPORATION, SANITATION DIVISION
13128 SR 226, PO Box 38 l Big Prairie, OH 44611 USA l 330-439-5550 l Fax 330-496-3097
www.DometicSanitation.com l sealand@dometic.com
L-2919All HTS Basic models include two discharge outlets and a TankSaver relief valve.
Specifications subject to change without notice.

EnvironmentallyResponsible

55 HTS-HRZ
Height: 18.5 in./470 mm
Width: 20 in./508 mm
Length: 40 in./1016 mm
Item: 322840551
80 HTS-HRZ
Height: 12.5 in./318 mm
Width: 28 in./711 mm
Length: 76 in./1930 mm
Item: 322800801