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Water / Waste Holding Tanks

Flexible Water & Holding Tanks Tank Accessories Rigid Water & Holding Tanks Tank Monitors

80 Listed

  1. Todd Fresh Water/Waste Water Holding Tank

    $163.03 - $495.13
    1

  2. Vetus Flexible Fresh Water Tank

    $270.83 - $510.23
    1

  3. Plastimo Rectangular Flexible Water Tank - 26.4 Gal - 70965

    $154.61
    3

  4. Veratron VDO Fresh Water Level Sender - 226-828-001-001K

    $539.86
    1

  5. SCAD TM1 Tank Monitor with External Sensor Strip - 10040

    $262.38
    2

  6. SCAD TM2 Tank Monitor for Two Tanks - 10041

    $213.38
    1

  7. Scepter Potable Water Jerry Can - 5 Gal - 04933

    $38.43
    2

  8. Dometic Universal Holding Tank Cleanout Kit - 307238685

    $64.98
    1
  9. 9% off

    LIST 3-Level Waste Tank Monitor - TM-332111

    $332.40
    $299.22
    1

  10. Nauta Flexible Tank Fill Fitting - FTP1210

    $23.32
    1

  11. Todd Water Tank Relocation Kit - 90-2218

    $95.78
    1

  12. Vetus Flexible Waste Water Holding Tank

    $378.63 - $748.23
    0

  13. Vetus Water Tank Fitting

    $29.98
    0

  14. Dometic DTM04 TankWatch 4-Level Tank Monitor System

    $487.82
    0

  15. Nauta Flexible Fresh Water Tank

    $503.22 - $812.63
    0

  16. Dometic Multi-Level Tank Monitor System

    $475.18
    0

  17. Plastimo Rectangular Flexible Water Tank - 52.8 Gal - 70956

    $235.83
    0

  18. Plastimo Square Flexible Fresh Water Tank - 13.2 Gal - 70963

    $112.60
    0

  19. Plastimo Triangular Flexible Water Tank - 31.7 Gal - 70957

    $178.42
    0

  20. Veratron Level Sensor Single Station with Seal Kit - 226-801-015-001G

    $95.08
    0

  21. Veratron Marine NMEA 2000 Liquid Level Sensor - B00041501

    $689.82
    0

  22. Veratron Fresh Water Level Sensor with Sealing Kit #370

    $226.12 - $555.00
    0

  23. Veratron Fresh Water Level Sensor with Sealing Kit #930

    $226.12 - $550.80
    0

  24. Veratron Waste Water Level Sensor with Sealing Kit #930

    $360.94 - $689.82
    0

  25. Todd Holding Tank Fitting Adapter Kit - 93-2223

    $42.58
    0

  26. Todd Holding Tank Fitting Adapter Kit - 93-2220

    $39.78
    0

  27. Todd Holding Tank Fitting Adapter Kit - 93-2221

    $50.98
    0

  28. Todd Holding Tank Fitting Adapter Kit - 93-2222

    $35.58
    0

  29. Todd Water Tank Relocation Kit - 90-2219

    $105.58
    0

  30. Vetus Waste Tank Repair Set - REPSETOT

    $27.80
    0

  31. Nauta Flexible Tank Drawing Nipple - FTP1300

    $17.66
    0

  32. Nauta Flexible Tank Drawing Nipple - FTP311

    $29.98
    0

  33. Nauta Flexible Tank Drawing Nipple - FTP300

    $16.87
    0

  34. Nauta Flexible Tank Drawing Nipple - FTP400

    $20.98
    0

  35. Nauta Flexible Tank Fill Fitting - FTP2221

    $84.58
    0

  36. Nauta Flexible Tank Vent Fitting - FTPE300

    $19.71
    0

  37. Nauta Heavy Duty Diesel Fuel and Waste Tank - 14.5 Gal - FT915122

    $770.62
    0
  38. 19% off

    LIST 3-Level Water Tank Monitor - TM-331111

    $332.40
    $266.04
    0

  39. LIST Single-Level Waste Tank Alarm - 3/4 Alert - TM-132111

    $214.80
    0
  40. 34% off

    LIST Single-Level Water Tank Alarm - 1/4 Alert - TM-131111

    $200.80
    $130.73
    0

  41. Blue Sea Mini OLED Tank Meter

    $66.38 - $67.78
    0

  42. Blue Sea Systems M2 OLED Digital Tank Monitor - 1839

    $386.98
    0

  43. Raritan Tank Sensor - Float Style - STCFL

    $150.38
    0

  44. Raritan Tank Sensor - Stick-On Style - STCTSA

    $97.18
    0

  45. SCAD Technologies External Tape-On Tank Sensor - 10022

    $85.98
    0

  46. SCAD Technologies Internal Tank Sensor - 10021

    $102.78
    0

  47. Blue Sea Systems VSM 422 Vessel Systems Monitor Tank Sender

    $160.18 - $161.58

  48. Groco SweetTank Odor Neutralization System

    $587.20 - $597.00
    0
 
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About Water / Waste Holding Tanks

Water and Waste Holding Tanks & Fittings


Water / Waste Holding Tanks & Fittings - Defender offers parts galore and a selection of marine holding tanks for waste holding, black water tanks and marine water tanks that will fit just about any boat and application.

What size marine holding tank do you need?


Consider first the boat's needs. Defender offers a full line of marine holding tanks that will fit below any and all decks. The shape and size of your new marine holding tank, the location of the intake and the construction of the tank itself will more accurately determine how many gallons you need.

Boat holding tank construction ABC's.


Rigid tanks are built from polyethylene plastic that is super strong and holds odors inside. Sealed pipe fittings and plugs offer easy conversion from waste storage to water storage on most tanks at Defender. If flexible tanks are a necessity due to boat storage limitations look for 3-layer construction with welded seams.

How long do marine waste holding tanks last?


High quality marine holding tanks from Defender should last as long as your love affair with your boat! High strength plastic with pre drilled fittings and sealed plugs ensure that the chance for leaks are minimal and a holding tank placed under the deck will stay put for quite some time!

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