Marine & RV Waste & Water Tanks
Click here to download Waste/Water TankOrder Form. Available tank sizes are listed below.
If you're looking for GMC tanks, click here: https://ardemco.com/gmc-waste-and-water-tanks/
Looking for superior marine and RV waste and water tanks? You have come to the right place. At Ardemco, we carry only the highest quality boat and RV sanitation products.
We have a huge selection of Polyethylene marine and RV waste & water tanks and we're here to help you find the right holding tank for your RV or boat. Additionally we can provide all of fittings and other necessary installation materials to make the installation as simple as possible to accomplish in very little time without professional assistance.
If you can't find the right system, or you aren't sure how to install it, contact our customer service line at (800) 253-0115 or send us an email at james@ardemco.com. We're available Monday through Friday between 8:30 AM and 4:30 PM PST. Feel free to ask any questions, and let us know if you need help choosing the right parts.
Don't settle for inferior marine sanitation parts. Shop Ardemco today and get the best!
How to Order Waste and Water Tanks from Ardemco
Use our order form to order your waste or water tanks. Download the ORDER FORM and email to James@ardemco.com.
How to Find the Proper Waste or Water Tank for your Boat or RV
Your tank will fit in a space described in inches by maximum length, maximum width and maximum height. Multiply these three dimensions together then divide by 231. This gives you your gallonage capacity.
For example: 40" long by 20" wide by 10" tall would be 40x20x10=8000 divided by 231 equals 34 gallons. In this case you would consult the list below for tanks in the 34 gallon section.
Notes
Wall Thickness for Heavy Duty Tanks is a minimum of 5/16". Length, Width and Height dimensions are indicated in inches to the nearest 1/8".
The gallonage shown for each Tank is nominal and not intended to be exact. All Tanks are natural white unless otherwise specified.
Fittings will be located per customer's specifications with 1/4", 3/8",1/2",3/4",1", 1-1/2", 2"or 3" threaded inlets or outlets.
The materials will be non-toxic FDA accepted linear polyethylene.
If you're looking for GMC tanks, click here: https://ardemco.com/gmc-waste-and-water-tanks/
Available Tanks (By Gallon and Dimensions)
| Tank Gallonage and Dimensions | Product SKU | Price |
| HD 9 gal Waste and Water Tank 30 1/4" X 10" X 9" | 23WHD | 296.50 |
| 10 gal Waste and Water Tank 15 3/8" X 13 1/4" X 13 1/4" | B263HD | 269.53 |
| 10 gal Waste and Water Tank 17 3/4" X 12 1/2" X 11" | B365HD | 296.50 |
| 10 gal Waste and Water Tank 26" X 11" X 11" | B438HD | 269.53 |
| 10 gal Waste and Water Tank 32" X 19 1/2" X 4 3/4" | B323HD | 296.50 |
| 11 gal Waste and Water Tank 15 3/8" X 13 1/2" X 13 1/2" | B286HD | 269.53 |
| 11 gal Waste and Water Tank 17" X 16" X 11" | B375HD | 247.89 |
| 11 gal Waste and Water Tank 18" X 13" X 13" | 16WHD | 323.48 |
| 11 gal Waste and Water Tank 24" X 15 1/2" X 8 1/2" | 14WHD | 323.45 |
| 11 gal Waste and Water Tank 35" X 19 1/2" X 1 3/4" | B319HD | 296.50 |
| 12 gal Waste and Water Tank | B255HD | 323.44 |
| 12 gal Waste and Water Tank 15 1/2" X 15 1/4" X 14 3/4" | B441HD | 323.48 |
| 12 gal Waste and Water Tank 17 1/2" X 14" X 12" | B105HD | 323.45 |
| 12 gal Waste and Water Tank 20" X 12" X 12" | B124HD | 323.44 |
| 12 gal Waste and Water Tank 23" X 11 1/2" X 11 1/2" | B279HD | 323.44 |
| 12 gal Waste and Water Tank 29 3/4" X 13 7/8" X 8 1/8" | 3WHD | 323.45 |
| 13 gal Waste and Water Tank 15 7/8" X 15 1/8" X 14 1/2" | B262HD | 323.44 |
| 13 gal Waste and Water Tank 18 1/4" X 14 3/8" X 13 1/8" | B266HD | 323.44 |
| 13 gal Waste and Water Tank 21" X 13" X 13" | 11WHD | 323.45 |
| 13 gal Waste and Water Tank 30" X 16" X 7 1/2" | 37WHD | 323.45 |
| 14 gal Waste and Water Tank 15 5/8" X 15 5/8" X 15 1/8" | B274HD | 323.45 |
| 14 gal Waste and Water Tank 17 1/2" X 14 1/2" X 14 1/4" | B265HD | 361.60 |
| 14 gal Waste and Water Tank 24 1/2" X 16 1/2" X 9 1/8" | B245HD | 323.44 |
| 15 gal Waste and Water Tank 17 1/2" X 16 3/4" X 13 3/4" | B320HD | 323.44 |
| 15 gal Waste and Water Tank 20" X 13" X 13" | B175HD | 323.44 |
| 15 gal Waste and Water Tank 20" X 15" X 12" | B131HD | 323.44 |
| 15 gal Waste and Water Tank 22" X 17" X 9 7/8" | B264HD | 323.44 |
| 15 gal Waste and Water Tank 24" X 18 1/2" X 8 1/2" | B388HD | 323.44 |
| 15 gal Waste and Water Tank 27 1/2" X 14 3/4" X 9 1/2" | B251HD | 323.44 |
| 16 gal Waste and Water Tank 16" X 16" X 16" | B106HD | 323.45 |
| 17 gal Waste and Water Tank 19 1/2" X 18" X 12" | B325HD | 350.40 |
| 17 gal Waste and Water Tank 23" X 21" X 9" | 36WHD | 350.40 |
| 17 gal Waste and Water Tank 32" X 12" X 12" | 27WHD | 377.33 |
| 17 gal Waste and Water Tank 19 3/4" X 15 3/4" X 14" | B359HD | 350.40 |
| 18 gal Waste and Water Tank | B369HD | 377.32 |
| 18 gal Waste and Water Tank 20" X 17" X 13" | B159HD | 350.40 |
| 18 gal Waste and Water Tank 22" X 17" X 12" | B366HD | 377.32 |
| 18 gal Waste and Water Tank 25" X 25" X 7 3/4" | B211HD | 377.32 |
| 18 gal Waste and Water Tank 40" X 18" X 6" | B235HD | 377.32 |
| 18 gal Waste and Water Tank 48 1/2" X 10 3/4" X 8" | B232HD | 377.32 |
| 19 gal Waste and Water Tank 38" X 15 1/2" X 8 1/8" | 20WHD | 377.33 |
| HD 19 gal Waste and Water Tank 29" X 23" X 8" | B480HD | 458.25 |
| 20 gal Waste and Water Tank 18 1/2" X 18" X 16" | B257HD | 377.32 |
| 20 gal Waste and Water Tank 21" X 21" X 11 1/4" | B233HD | 377.32 |
| 20 gal Waste and Water Tank 24" X 17" X 12' | B200HD | 377.32 |
| 20 gal Waste and Water Tank 28 1/4" X 14 1/2" X 11 1/2" | B231HD | 377.32 |
| 20 gal Waste and Water Tank 28" X 16 1/8" X 12 1/4" | B213HD | 404.31 |
| 20 gal Waste and Water Tank 30" X 18" X 10 1/2" | B181HD | 377.32 |
| 20 gal Waste and Water Tank 32" X 16 1/2" X 10" | 57WHD | 377.33 |
| 20 gal Waste and Water Tank 33 1/4" X 17 1/8" X 8 3/4" | B234HD | 377.32 |
| 20 gal Waste and Water Tank 35" X 19" X 7 3/4" | 72WHD | 377.33 |
| 20 gal Waste and Water Tank 35" X 13" X 11" | 39WHD | 377.33 |
| 20 gal Waste and Water Tank 20 3/4" X 17 3/4" X 13 3/4" | B227HD | 377.32 |
| 21 gal Waste and Water Tank 19 7/8" X 16 7/8" X 16 3/8" | B281HD | 330.14 |
| 21 gal Waste and Water Tank 53 1/2" X 16 3/4" X 6" | B355HD | 349.83 |
| 22 gal Waste and Water Tank 23" X 16 7/8" X 14 3/4" | B276HD | 346.44 |
| 22 gal Waste and Water Tank 34" X 12" X 12" | B128HD | 377.32 |
| 22 gal Waste and Water Tank 45 1/2" X 11 1/2" X 11 1/2" | B430HD | 346.13 |
| 23 gal Waste and Water Tank 40" X 18" X 8" | B378HD | 309.29 |
| 23 gal Waste and Water Tank 50" X 16" X 8" | 50WHD | 458.26 |
| 23 gal Waste and Water Tank 44 1/2" X 12 1/2" X11 1/2" | B450HD | 309.29 |
| 24 gal Waste and Water Tank 44" X 26" X 6" | B446HD | 404.32 |
| 25 gal Waste and Water Tank 22 1/2" X 22 1/2" X 12" | B225HD | 431.28 |
| 25 gal Waste and Water Tank 23 1/2" X 23" X 12" | B250HD | 431.28 |
| 25 gal Waste and Water Tank 30" X 20" X 10" | B163HD | 404.31 |
| 25 gal Waste and Water Tank 32" X 22" X 10" | B408HD | 431.28 |
| 25 gal Waste and Water Tank 36" X 32" X 6" | B425HD | 330.13 |
| 25 gal Waste and Water Tank 38" X 20" X 9" | 71WHD | 458.26 |
| 26 gal Waste and Water Tank 60" X 21" X 6" | B406HD | 458.25 |
| 27 gal Waste and Water Tank 43" X 16" X 10 1/2" | 24WHD | 458.26 |
| 28 gal Waste and Water Tank 20 3/4" X 19 1/4" x 17 5/8" | B273HD | 485.20 |
| 28 gal Waste and Water Tank 35 1/2" X 15" 13" | B161HD | 458.25 |
| 28 gal Waste and Water Tank 36" X 18" X 12" | B437HD | 458.26 |
| 28 gal Waste and Water Tank 48" X 14" X 10" | B239HD | 485.20 |
| 28 gal Waste and Water Tank 48" X 20" X 8" | 69WHD | 485.21 |
| 28 gal Waste and Water Tank 60" X 16" X 8" | 52WHD | 485.21 |
| 30 gal Waste and Water Tank 24" X 20" X 16" | B118HD | 382.65 |
| 30 gal Waste and Water Tank 30" X 20" X 12" | B157HD | 458.26 |
| 30 gal Waste and Water Tank 30" X 24" X 10" | B162HD | 458.25 |
| 30 gal Waste and Water Tank 39 "X 15" X 12 1/2" | B140HD | 458.25 |
| 30 gal Waste and Water Tank 40" X 20" X 10" | B424HD | 349.83 |
| 30 gal Waste and Water Tanks 33" X 20 1/2" X 11" | B350HD | 458.25 |
| 31 gal Waste and Water Tank 31" X 23" X 11 1/2" | 26WHD | 485.21 |
| 32 gal Waste and Water Tank 30" X 16 1/2" X 16" | B127HD | 485.22 |
| 32 gal Waste and Water Tank 37 1/2" X 19" X 12" | 2WHD | 485.21 |
| 32 gal Waste and Water Tank 44 1/2" X 15 1/2" X 12 1/2" | B449HD | 391.46 |
| 32 gal Waste and Water Tank 69" X 11" X 11" | B316HD | 512.16 |
| 33 gal Waste and Water Tank 60" X 22" X 7" | B409HD | 370.69 |
| 33 gal Waste and Water Tank 70" X 16" X 8" | 53WHD | 539.08 |
| 34 gal Waste and Water Tank 34" X 26 " X 9 1/2" | B381HD | 458.25 |
| 35 gal Waste and Water Tank 32 1/8" X 19 1/2" X 15" | 1W HD | 485.21 |
| 35 gal Waste and Water Tank 48" X 17" X 10" | B147HD | 485.20 |
| 35 gal Waste and Water Tank 67" X 14 X 10" | B371 | 592.96 |
| 36 gal Waste and Water Tank 30 1/2" X 21 1/2" X 13 3/4" | B158HD | 512.16 |
| 36 gal Waste and Water Tank 30" X 22" X 14" | 7WHD | 512.16 |
| 36 gal Waste and Water Tank 32" X 32" X 9 1/4" | B383HD | 566.04 |
| 36 gal Waste and Water Tank 45" X 18 1/2" X 11 1/4" | 38WHD | 512.16 |
| 36 gal Waste and Water Tank 46" X 36" X 6" | B428HD | 391.52 |
| 36 gal Waste and Water Tank 48 1/2" X 14 1/2" X 13 1/4" | 6WHD | 512.16 |
| 37 gal Waste and Water Tank | B372HD | 432.08 |
| 37 gal Waste and Water Tank 40 1/2" X 24" X 10" | 17WHD | 566.04 |
| 38 gal Waste and Water Tank 37" X 28" X 9" | B346HD | 566.04 |
| 40 gal Waste and Water Tank 23 1/2" X 23" X 18" | B221HD | 566.04 |
| 40 gal Waste and Water Tank 28" X 23" X 16" | B432HD | 566.04 |
| 40 gal Waste and Water Tank 29 7/8" X 20 7/8" X 16 5/8" | B256HD | 566.04 |
| 40 gal Waste and Water Tank 34 3/4" X 26" X 11" | B347HD | 566.04 |
| 40 gal Waste and Water Tank 37 3/4" X 22 1/2" X 12 5/8" | B456HD | 452.94 |
| 40 gal Waste and Water Tank 39" X 18" X 14" | B309HD | 566.04 |
| 40 gal Waste and Water Tank 42" X 26 3/4" X 9 1/2" | B222HD | 566.04 |
| 40 gal Waste and Water Tank 54" X 20" X 9" | B305HD | 566.04 |
| 40 gal Waste and Water Tank 58" X 13 3/4" X 12" | B240HD | 566.04 |
| 40 gal Waste and Water Tank 26 1/2" X 21 1/2" X 18" | B252HD | 566.04 |
| 41 gal Waste and Water Tank 36" X 23" X 13" | 47WHD | 593.00 |
| 42 gal Waste and Water Tank 24" X 24" X 19" | B443HD | 566.04 |
| 42 gal Waste and Water Tank 36" X 25" 12" | B237HD | 566.04 |
| 42 gal Waste and Water Tank 40" X 26 3/4" X 10" | B380HD | 432.08 |
| 42 gal Waste and Water Tank 46" X 18" X 13" | B182HD | 566.04 |
| 43 gal Waste and Water Tank 30" X 20' X 18" | B220HD | 539.00 |
| 43 gal Waste and Water Tank 36" X 22" X 14" | 22WHD | 593.00 |
| 43 gal Waste and Water Tank 54" X 16" X 13" | B368HD | 619.95 |
| 44 gal Waste and Water Tank 48" X 20" X 12" | 9WHD | 646.96 |
| 45 gal Waste and Water Tank 36" X 33" X 10" | B386HD | 473.78 |
| 45 gal Waste and Water Tank 38" X 22" X 14" | B376HD | 646.89 |
| 45 gal Waste and Water Tank 40" X 19" X 15 5/8" | B318HD | 619.95 |
| 45 gal Waste and Water Tank 47 1/2" X 17 3/8" X 14 1/4" | B370HD | 646.89 |
| 45 gal Waste and Water Tank 64 1/2" X 14" X 12 7/8" | B317HD | 673.88 |
| 45 gal Waste and Water Tank 78" X 18" X 8.5" | B310HD | 619.95 |
| 47 gal Waste and Water Tank 33 1/4" X 24 1/2" X 15" | B507HD | 452.94 |
| 47 gal Waste and Water Tank 40 1/2" X 25 1/4" X 12" | 33WHD | 593.00 |
| 48 gal Waste and Water Tank 39" X 27 1/2" X 11 3/4" | B491HD | 514.32 |
| 48 gal Waste and Water Tank 45 1/2" X 24 1/4" X 11" | B306HD | 673.88 |
| 48 gal Waste and Water Tank 68 1/2" X 27" X 7" | B229HD | 673.88 |
| 50 gal Waste and Water Tank 33" X 27" X 14" | B210HD | 646.89 |
| 50 gal Waste and Water Tank 40 "X 20" X 16" | B156HD | 673.88 |
| 50 gal Waste and Water Tank 50" X 16" X 16" | B416HD | 673.88 |
| 50 gal Waste and Water Tank 59 3/4" X 18 1/2" X 11 3/4" | B465HD | 514.32 |
| 50 gal Waste and Water Tank 60 1/2" X 20 1/8" X 11" | 8WHD | 646.96 |
| 50 gal Waste and Water Tank 64" X 22" X 9 1/8" | B308HD | 673.84 |
| 52 gal Waste and Water Tank 28" X 23" X 21" | B295HD | 673.88 |
| 52 gal Waste and Water Tank 30 1/2" X 24 3/8" X 17 3/8" | B315HD | 673.88 |
| 52 gal Waste and Water Tank 40" X 24" X 14" | 48WHD | 646.96 |
| 53 gal Waste and Water Tank 57" X 26 1/2" X 9 1/4" | B133HD | 673.88 |
| 53 gal Waste and Water Tank 72" X 15" X 13" | B312HD | 673.88 |
| 58 gal Waste and Water Tank 34" X 34" X 13" | 44WHD | 673.88 |
| 58 gal Waste and Water Tank 42" X 23" X 15 1/2" | 63WHD | 673.88 |
| 58 gal Waste and Water Tank 44" X 22" X15.5" | 60WHD | 673.88 |
| 58 gal Waste and Water Tank 46 3/4" X 20 3/4" X 15 1/2" | 42WHD | 673.88 |
| 60 gal Waste and Water Tank 32" X 23 3/4" X 20 1/2" | B242HD | 727.74 |
| 60 gal Waste and Water Tank 36 1/4" X 30 1/4" X 14 1/4" | 54WHD | 673.88 |
| 60 gal Waste and Water Tank 40" X 25" X 15 1/2" | 59WHD | 673.88 |
| 65 gal Waste and Water Tank 28" X 25" X 24" | B297HD | 782.00 |
| 65 gal Waste and Water Tank 37" X 30" X 15" | B324HD | 781.66 |
| 65 gal Waste and Water Tank 39 1/8" X 30 7/8" X 13 1/2" | B283HD | 754.71 |
| 65 gal Waste and Water Tank 48" X 20" X 17" | B248HD | 754.71 |
| 69 gal Waste and Water Tank 26" X 26" X 26" | B434HD | 617.42 |
| 69 gal Waste and Water Tank 8" X 26" X 18" | B444HD | 808.63 |
| 70 gal Waste and Water Tank 34" X 23" X 23" | B296HD | 808.63 |
| 70 gal Waste and Water Tank 34" X 30" X 18" | B401HD | 638.28 |
| 75 gal Waste and Water Tank 54" X 22" X 16" | 61WHD | 808.63 |
| 80 gal Waste and Water Tank 39 1/2" X 31 1/2" X 16 3/4" | B363HD | 862.50 |
| 80 gal Waste and Water Tank 45 5/8" X 22" X 20 1/2" | B260HD | 889.48 |
| 80 gal Waste and Water Tank 48" X 24" X 18" | B327HD | 889.48 |
| 80 gal Waste and Water Tank 62 1/2" 25 1/2" X 11" | B458HD | 1132.06 |
| 80 gal Waste and Water Tank 68 1/2" X 27" X 11" | B230HD | 889.48 |
| 80 gal Waste and Water Tank 76" X 28" X 10" | B299HD | 889.48 |
| 86 gal Waste and Water Tank 39 1/4" X 39 1/4" X 14 1/2" | 64WHD | 862.50 |
| 90 gal Waste and Water Tank 34" X 32" X 21" | B314HD | 916.41 |
| 90 gal Waste and Water Tank 76" X 27" X 11 1/2" | B204HD | 943.39 |
| 92 gal Waste and Water Tank 53" X 31" X 14 1/4" | B483HD | 916.41 |
| 92 gal Waste and Water Tank 72" X 33" X 10" | B387HD | 699.67 |
| 93 gal Waste and Water Tank 67" X 22" X 16" | 66WHD | 889.45 |
| 95 gal Waste and Water Tank 47" X 33" X 16" | B354HD | 720.42 |
| 95 gal Waste and Water Tank 71 1/2" X 26" X 13" | B259HD | 943.39 |
| 97 gal Waste and Water Tank 63" 40" 10" | B487HD | 720.42 |
| 98 gal Waste and Water Tank 35" X 27" X 26" | B477HD | 0.00 |
| 100 gal Waste and Water Tank 44" X 24" X 24" | B455HD | 943.39 |
| 105 gal Waste and Water Tank 39" X 26" X 26" | B427HD | 985.15 |
| 110 gal Waste and Water Tank 48" X 24 1/2" X 24" | B433HD | 761.06 |
| 110 gal Waste and Water Tank 76" X 24" X 15 1/2" | B298HD | 970.35 |
| 110 gal Waste and Water Tank 95" X 33" X 9" | B391HD | 741.37 |
| 115 gal Waste and Water Tank 39 1/2" X 28" X 26" | B328HD | 1024.24 |
| 115 gal Waste and Water Tank 54" X 27" X 20" | B466HD | 1024.68 |
| 125 gal Waste and Water Tank 43 1/8" X 29 7/8" X 24" | B247HD | 1185.98 |
| 130 gal Waste and Water Tank 60" X 30" X 18" | B356HD | 1185.98 |
| 135 gal Waste and Water Tank 75 1.2" X 33 1/4" X 14" | B407HD | 930.99 |
| 135 gal Waste and Water Tank 76" X 28" X 16" | B300HD | 1212.91 |
| 141 gal Waste and Water Tank 53" X 35' X 19" | B484HD | 1239.90 |
| 150 gal Waste and Water Tank 40 1/4" X 32 1/2" X 28 1/2" | B494HD | 967.27 |
| 150 gal Waste and Water Tank 67" X 24" X 24" | B392HD | 967.27 |
| 165 gal Waste and Water Tank 43 5/8" X 31 5/8" X 30 1/8" | B246HD | 1293.81 |
| 190 gal Waste and Water Tank 56" X 30" X 28" | B506HD | 1070.36 |
| 200 gal Waste and Water Tank | B485HD | 1110.89 |
| 210 gal Waste and Water Tank 60" X 36" X 24" | B302HD | 1455.52 |
| 260 gal Waste and Water Tank 61 1/4" X 59" X 18" | B284HD | 1859.85 |