Defender Canada
Free Shipping on orders over $99*

Water / Waste Holding Tanks

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

100 Listed

  1. Raritan Tank Sensor - Float Style - STCFL

    $150.04
    0

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

    $133.21
    0

  3. Vetus Right Angle Hose Connection

    $34.42

  4. Maretron SAE 5-Bolt Pattern Focus Tube - TFTDBE-5H

    $120.45
    0

  5. SCAD Technologies Adapter Plate - 10029

    $54.16
    0

  6. Nauta Flexible Tank Vent Fitting - FTPE300

    $21.35
    0

  7. Vetus Curved Extraction Pipe - WTS78038B

    $62.62

  8. Vetus Fuel Tank Float Sensor - FSENSOR

    $73.90

  9. LIST 3-Level Water Tank Monitor - TM-331111

    $337.59
    0

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

    $219.15
    0

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

    $30.19
    0

  12. Nauta Flexible Tank Fill Fitting - FTP1210

    $25.27
    1

  13. Vetus Connection Kit

    $89.41 - $107.77

  14. Perko Inlet Check Valve - 0635DP0

    $23.06
    1

  15. Todd Water Tank Relocation Kit - 90-2218

    $79.54
    1

  16. Nauta Flexible Tank Drawing Nipple - FTP1300

    $21.00
    0

  17. Nauta Flexible Tank Drawing Nipple - FTP300

    $18.24
    0

  18. Nauta Flexible Tank Drawing Nipple - FTP400

    $22.71
    0

  19. Raritan Holding Tank Monitor Indicator Panel - 1520012

    $382.69

  20. Sea-Dog Gas Tank Strap - 359995-1

    $16.80

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

    $389.74
    1
  22. 61% off

    Oceanic Systems Deck-Mounted Water Gauge - 5250-W

    $458.83
    $175.09
    0

  23. LIST 3-Level Waste Tank Monitor - TM-332111

    $337.59
    2

  24. Maretron NMEA 2000 Tank Temperature Immersion Probe - TP-IP-1

    $205.03
    0

  25. Todd Water Tank Relocation Kit - 90-2219

    $106.33
    0

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

    $110.56
    2

  27. Veratron OceanLink Fresh Water Gauge - 52 mm (2 1/16")

    $127.50
    0

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

    $317.21 - $766.23
    0

  29. Vetus Waste Tank Repair Set - REPSETOT

    $27.99
    0

  30. Raritan Holding Tank Monitor - 1510012

    $714.04

  31. Dometic 12 HTS-HRZ Basic Series Waste Water Holding Tank System - 11 Gal - 322840121

    $729.70
    0

  32. Dometic 15 HTS-VRT Basic Series Waste Water Holding Tank System - 15 Gal - 322840152

    $925.78
    0

  33. Dometic 30 HTS-HRZ Basic Series Waste Water Holding Tank System - 28 Gal - 322840301

    $846.85
    0

  34. Dometic Holding Tank Diptube Kit - 385310660

    $80.99
    0
  35. 39% off

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

    $202.23
    $121.57
    0

  36. Veratron Marine NMEA 2000 Liquid Level Sensor - B00041501

    $1,173.72
    0

  37. Victron Energy VE.Can Resistive Tank Sender Adapter - BPP900600100

    $468.03
    0

  38. Faria Euro Black Potable Water Tank Level Gauge - 12831

    $44.31

  39. Groco Full Color Touchscreen LCD Monitor - 5" - LCD-5

    $2,279.16

  40. Raritan TankAssure Control Panel with Sensor - 15600

    $831.10

  41. Raritan TankAssure Sensor Kit - 15610

    $503.97

  42. Raritan TankAssure NMEA2000 Adapter - 15630

    $551.89

  43. Raritan Tank Monitor Indicator Panel Wire Harness - 152WH

    $49.93

  44. Groco Tank Level Sensor Assembly - 450 ASSY

    $457.42
    0

  45. Dometic 10 HTS-T Waste Water Holding Tank System with Pump - 10 Gal - 322721012

    $1,633.65
    0

  46. Dometic 12 HTS-VRT Basic Series Waste Water Holding Tank System - 11 Gal - 322840122

    $726.86
    0

  47. Dometic 15 HTS-HRZ Basic Series Waste Water Holding Tank System - 15 Gal - 322840151

    $924.37
    0

  48. Dometic 20 HTS-HRZ Basic Series Waste Water Holding Tank System - 18 Gal - 322840201

    $803.02
    0
Previous2 / 3Next

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!

0Filters

Category
Manufacturer
Price
16.8
2280.16
More Ways To Shop
Availability

Change Locale

Canada - English Shop in currency: CAD
Canada - Français Shop in currency: CAD
United States - English Shop in currency: USD

Helpful Information

Track My Order
Shipping Policy
Return Policy

Get In Touch

Customer Service
1-888-490-6844
Send a Message

Resources

Gift Cards
Privacy Policy
Conditions of Use

Stay Connected

X
Facebook
Instagram
YouTube
Toggle desktop/mobile version
2025 © Defender Canada. All Rights Reserved.