Water / Waste Holding Tanks
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Dometic DVF Holding Tank Vent Filter Replacement Cartridge - 9108849515
$126.99 -
SCAD TM1 Tank Monitor with External Sensor Strip - 10040
$204.99 -
Todd Fresh Water/Waste Water Holding Tank
$87.99 - $351.99 -
Plastimo Rectangular Flexible Water Tank - 26.4 Gal - 70965
$130.99 -
Vetus Flexible Fresh Water Tank
$194.99 - $412.99 -
Plastimo Rectangular Flexible Water Tank - 52.8 Gal - 70956
$190.99 -
Nauta Flexible Fresh Water Tank
$358.99 - $608.99 -
SCAD TM2 Tank Monitor for Two Tanks - 10041
$150.99 -
Plastimo Triangular Flexible Water Tank - 31.7 Gal - 70957
$168.99 -
Vetus Flexible Waste Water Holding Tank
$435.99 - $892.99 -
Plastimo Square Flexible Fresh Water Tank - 13.2 Gal - 70963
$114.99 -
SCAD Technologies External Tape-On Tank Sensor - 10022
$77.99 -
Maretron NMEA 2000 Tank Level Monitor - TLM100-01
$262.99 -
Dometic DTM04 TankWatch 4-Level Tank Monitor System
$422.99 - $434.99 -
Dometic 20 HTS-VRT Basic Series Waste Water Holding Tank System - 18 Gal - 9108555503
$634.99 -
Nauta Flexible Tank Fill Fitting - FTP2221
$64.99 -
Dometic 25 HTS-HRZ Basic Series Waste Water Holding Tank System - 25 Gal - 9108555494
$573.99 -
Vetus Inspection Lid
$19.99 - $74.99 -
Nauta Heavy Duty Diesel Fuel and Waste Tank - 14.5 Gal - FT915122
$549.99 -
LIST 3-Level Waste Tank Monitor - TM-332111
$238.99 -
Vetus Universal Synthetic Tank
$176.99 - $907.99 -
Blue Sea Systems M2 OLED Digital Tank Monitor - 1839
$275.99 -
Groco 4-Way Tank Selector Kit - TS-350-T
$186.99 -
Groco Tank Level Sensor - 08-0004-02
$244.99 -
Dometic Universal Holding Tank Cleanout Kit - 9108731133
$54.99 -
Dometic DTM01 Holding Tank Monitor - 9108688891
$179.99 -
Groco SweetTank Odor Neutralization System
$363.99 - $371.99 -
Raritan TankAssure Control Panel with Sensor - 15600
$632.99 -
Raritan Tank Sensor - Stick-On Style - STCTSA
$75.99 -
Vetus Fuel Connection Kit Filler
$273.99 - $324.99 -
Dometic Multi-Level Tank Monitor System
$398.99 -
Veratron Level Sensor Single Station with Seal Kit - 226-801-015-001G
$94.05 -
Vetus Spare Filter Element for No-Smell Filter - Large - NSF16FE
$25.99 -
Vetus Flexible Tank Fitting
$23.99 -
Vetus Connection Kit
$73.99 - $88.99 -
Nauta Flexible Tank Drawing Nipple - FTP311
$22.99 -
Todd Holding Tank Fitting Adapter Kit - 93-2221
$31.99 -
Vetus No-Smell Filter with Connections
$105.99 - $134.99 -
SCAD Technologies Internal Tank Sensor - 10021
$103.99 -
Dometic Holding Tank Flange Kit - 9108553349
$47.99 -
Maretron TFT-5H-Focus Tube Kit - TFT-5H
$63.99 -
Vetus Ultrasonic Fluid Level Sensor
$198.99 - $208.99 -
Veratron Fresh Water Level Sensor with Sealing Kit #370
$224.55 - $403.83 -
Maretron Tank Level Sender - TLM150-01
$293.99 -
Johnson Viking Power 16 Grey Water Tank with Ultima Switch - 09-13384
$223.99 -
Vetus Universal Tank Float Sensor
$175.99 - $258.99 -
Vetus Right Angle Hose Connection
$26.99 -
Raritan TankAssure Sensor Kit - 15610
$390.99
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!