RV Water Tanks

RV Fresh Water Tanks are designed for potable water use in motorhomes, trailers, campers, food trucks, tiny houses and more. All of our RV Water Tanks are rotationally molded using BPA free and FDA approved resin, suitable for drinking water and food handling.


Our RV Tanks have the option of pre-installed fittings, can be ordered as a blank tank for DIY fittings, or RV Tank Supply can work with you for customized fittings. Where you can specify your exact filling location and type.

Name Capacity Length Width Height Diameter Part # Price

3 Gallon RV Water Tank | RVWB267

3 Gallons 16.375'' 9'' 5.25'' N/A RVWB267
$67.95

3 Gallon RV Water Tank | RV13W

3 Gallons 17'' 7'' 7'' N/A RV13W
$90.95

4 Gallon RV Water Tank | RVWB525

4 Gallons 26'' 11'' 7'' N/A RVWB525
$90.95

4 Gallon RV Water Tank | RVWB269

4 Gallons 17.625'' 8.25'' 7.875'' N/A RVWB269
$56.95

5 Gallon RV Water Tank | RVWB410

5 Gallons 18'' 13.5'' 7'' N/A RVWB410
$156.95

5 Gallon RV Water Tank | RVWB390

5 Gallons 20'' 12'' 5.5'' N/A RVWB390
$90.95

5 Gallon RV Water Tank | RVWB377

5 Gallons 18.5'' 9.5'' 6.75'' N/A RVWB377
$112.95

5 Gallon RV Water Tank | RVWB322

5 Gallons 21'' 8.25'' 8'' N/A RVWB322
$112.95

5 Gallon RV Water Tank | RVWB268

5 Gallons 12.25'' 12.25'' 8.25'' N/A RVWB268
$78.95

6 Gallon RV Water Tank | RVWB533

6 Gallons 27'' 13.25'' 4.25'' N/A RVWB533
$146.95

6 Gallon RV Water Tank | RVWB404

6 Gallons 13.75'' 13.75'' 10'' N/A RVWB404
$146.95

6 Gallon RV Water Tank | RVWB357

6 Gallons 20'' 11.5'' 7'' N/A RVWB357
$146.95

6 Gallon RV Water Tank | RVWB285

6 Gallons 21.625'' 14.375'' 5.375'' N/A RVWB285
$112.95

6 Gallon RV Water Tank | RVWB277

6 Gallons 16'' 12'' 8'' N/A RVWB277
$100.95

7 Gallon RV Water Tank | RVWB535

7 Gallons 13'' 12'' 12'' N/A RVWB535
$90.95

7 Gallon RV Water Tank | RVWB395

7 Gallons 27'' 14.375'' 5'' N/A RVWB395
$112.95

7 Gallon RV Water Tank | RVWB344

7 Gallons 21.5'' 10'' 8.75'' N/A RVWB344
$112.95

7 Gallon RV Water Tank | RVWB326

7 Gallons 12'' 12'' 12'' N/A RVWB326
$90.95

7 Gallon RV Water Tank | RVWB287

7 Gallons 27'' 10.25'' 6.5'' N/A RVWB287
$100.95

7 Gallon RV Water Tank | RVWB275

7 Gallons 15.625'' 15.125'' 7.75'' N/A RVWB275
$100.95

7 Gallon RV Water Tank | RVWB272

7 Gallons 24.25'' 12.5'' 5.75'' N/A RVWB272
$100.95

7 Gallon RV Water Tank | RVWB271

7 Gallons 19.25'' 13.125'' 7.125'' N/A RVWB271
$100.95

8 Gallon RV Water Tank | RVWB360

8 Gallons 23.5'' 10'' 8.5'' N/A RVWB360
$90.95

8 Gallon RV Water Tank | RVWB280

8 Gallons Request Drawing Odd Shape Call 800 211-7998 N/A RVWB280
$112.95

8 Gallon RV Water Tank | RVWB270

8 Gallons 24'' 12.25'' 6.875'' N/A RVWB270
$90.95

8 Gallon RV Water Tank | RVWB186

8 Gallons 18'' 11.5'' 10'' N/A RVWB186
$90.95

8 Gallon RV Water Tank | RVWB121

8 Gallons Request Drawing Odd Shape Call 800 211-7998 N/A RVWB121
$112.95

8 Gallon RV Water Tank | RV41W

8 Gallons 17'' 12.75'' 10'' N/A RV41W
$146.95

8 Gallon RV Water Tank | RV21W

8 Gallons 17.75'' 15.75'' 8.25'' N/A RV21W
$190.95

9 Gallon RV Water Tank | RVWB532

9 Gallons 18.5'' 17'' 7.5'' N/A RVWB532
$134.95

9 Gallon RV Water Tank | RVWB442

9 Gallons 19'' 15'' 9'' N/A RVWB442
$134.95

9 Gallon RV Water Tank | RVWB361

9 Gallons 25.5'' 10.5'' 8.5'' N/A RVWB361
$134.95

9 Gallon RV Water Tank | RVWB341

9 Gallons 31'' 10.5'' 7'' N/A RVWB341
$134.95

9 Gallon RV Water Tank | RVWB336

9 Gallons 25'' 14.625'' 6'' N/A RVWB336
$186.95

9 Gallon RV Water Tank | RVWB321

9 Gallons 18'' 12.5'' 11'' N/A RVWB321
$123.95

9 Gallon RV Water Tank | RVWB304

9 Gallons 27'' 15'' 6'' N/A RVWB304
$123.95

9 Gallon RV Water Tank | RVWB288

9 Gallons 32'' 15'' 5'' N/A RVWB288
$112.95

9 Gallon RV Water Tank | RVWB132

9 Gallons 16'' 14'' 10'' N/A RVWB132
$90.95

9 Gallon RV Water Tank | RV56W

9 Gallons 20.5'' 12.75'' 8'' N/A RV56W
$168.95

9 Gallon RV Water Tank | RV31W

9 Gallons 34.25'' 15'' 12'' N/A RV31W
$224.95

10 Gallon RV Water Tank | RVWB560

10 Gallons 18'' 12'' 12'' N/A RVWB560
$168.95

10 Gallon RV Water Tank | RVWB438

10 Gallons 26'' 11'' 11'' N/A RVWB438
$146.95

10 Gallon RV Water Tank | RVWB389

10 Gallons 25.25'' 12.75'' 8'' N/A RVWB389
$112.95

10 Gallon RV Water Tank | RVWB365

10 Gallons 17.75'' 12.5'' 11'' N/A RVWB365
$123.95

10 Gallon RV Water Tank | RVWB323

10 Gallons 32'' 19.5'' 4.75'' N/A RVWB323
$146.95

10 Gallon RV Water Tank | RVWB263

10 Gallons 15.375'' 13.25'' 13.25'' N/A RVWB263
$146.95

10 Gallon RV Water Tank | RVWB217

10 Gallons Request Drawing Odd Shape Call 800 211-7998 N/A RVWB217
$112.95

11 Gallon RV Water Tank | RVWB375

11 Gallons 17'' 16'' 11'' N/A RVWB375
$146.95

11 Gallon RV Water Tank | RVWB319

11 Gallons 35'' 19.5'' 4.75'' N/A RVWB319
$190.95

11 Gallon RV Water Tank | RVWB286

11 Gallons 15.375'' 13.5'' 13.5'' N/A RVWB286
$112.95

11 Gallon RV Water Tank | RV23W

11 Gallons 30.25'' 10'' 9'' N/A RV23W
$202.95

12 Gallon RV Water Tank | RVWB548

12 Gallons 24'' 13.5'' 10'' N/A RVWB548
$168.95

12 Gallon RV Water Tank | RVWB441

12 Gallons 15.5'' 15.25'' 14.75'' N/A RVWB441
$168.95

12 Gallon RV Water Tank | RVWB279

12 Gallons 23'' 11.5'' 11.5'' N/A RVWB279
$112.95

12 Gallon RV Water Tank | RVWB255

12 Gallons 17'' 17'' 11'' N/A RVWB255
$146.95

12 Gallon RV Water Tank | RVWB124

12 Gallons 20'' 12'' 12'' N/A RVWB124
$112.95

12 Gallon RV Water Tank | RVWB105

12 Gallons 17.5'' 14'' 12'' N/A RVWB105
$112.95

12 Gallon RV Water Tank | RV16W

12 Gallons 18'' 13'' 13'' N/A RV16W
$168.95

12 Gallon RV Water Tank | RV14W

12 Gallons 24'' 15.5'' 8.25'' N/A RV14W
$168.95

13 Gallon RV Water Tank | RVWB266

13 Gallons 18.25'' 14.375'' 13.125'' N/A RVWB266
$202.95