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Push-In Drain Plug for 1-1/8" Thru-Hull & All Purpose Drains These push-in drain plugs are used to stop water flow through drains or overflows from baitwell or livewell. Also work well as plugs for si... More Details

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TH-Marine Push-In Drain Plug for 1-1/2" Thru-Hull Drains

Fittings, T-H Marine Supplies
$23.96
Push-In Drain Plug f/1-1/2" Thru-Hull Drains These push-in drain plugs are used to stop water flow through drains or overflows from baitwell or livewell. Also work well as plugs for sink drains and bu... More Details

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Thetford AquaBio - 16 Toss-Ins® Concentrate Packets

Accessories, Thetford Marine
$23.25
AquaBio - 16 Toss-Ins® Concentrate Packets Features: Pleasant citrus smell Size: 16 count toss-ins Formaldehyde-free No Bronopol This product may not be returned to the original point of purchase. Ple... More Details

AquaBio RV Holding Tank Treatment - Citrus Twist Scent - 6-Pack of 8oz Bottles AquaBio , a twist on RV holding tank treatments, offers today’s RVers a Formaldehyde and Bronopal Free formula. Thetford’... More Details

AquaBio RV Holding Tank Treatment - Citrus Twist Scent - Formaldehyde Free - 32oz AquaBio , a twist on RV holding tank treatments, offers today’s RVers a Formaldehyde and Bronopal Free formula. Thetfo... More Details

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Thetford AquaMax® Holding Tank Treatment - 1 Gallon - Spring Shower Scent

Cleaning, Marine Sanitation, Thetford Marine
$53.09
AquaMax® Holding Tank Treatment - 1 Gallon - Spring Shower Scent AquaMax® Holding Tank Treatment’s advanced enzyme-powered formulas neutralize odors and accelerate waste digestion to prevent clumping,... More Details

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Thetford AquaMax® Holding Tank Treatment - 16 Toss-Ins - Spring Shower Scent

Cleaning, Marine Sanitation, Thetford Marine
$24.14
AquaMax® Holding Tank Treatment - 16 Toss-Ins - Spring Shower Scent AquaMax® Holding Tank Treatment’s advanced enzyme-powered formulas neutralize odors and accelerate waste digestion to prevent clumpi... More Details

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Thetford AquaMax® Holding Tank Treatment - 32oz - Spring Shower Scent

Cleaning, Marine Sanitation, Thetford Marine
$16.93
AquaMax® Holding Tank Treatment - 32oz - Spring Shower Scent AquaMax® Holding Tank Treatment’s advanced enzyme-powered formulas neutralize odors and accelerate waste digestion to prevent clumping, clo... More Details

AquaMax® Holding Tank Treatment - 6-Pack - 8oz Liquid - Spring Shower Scent AquaMax® Holding Tank Treatment’s advanced enzyme powered formulas neutralize odors and accelerate waste digestion to preven... More Details

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Thetford AquaMax® Holding Tank Treatment - 64oz - Spring Shower Scent

Cleaning, Marine Sanitation, Thetford Marine
$29.43
AquaMax® Holding Tank Treatment - 64oz - Spring Shower Scent AquaMax® Holding Tank Treatment’s advanced enzyme-powered formulas neutralize odors and accelerate waste digestion to prevent clumping, clo... More Details

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Thetford Compass Eco Toilet - High, White - 12V

Marine Sanitation, Thetford Marine
$1,480.43
Compass Eco Toilet - High, White - 12V The narrow footprint and smart back of the Compass toilet give maximum space and maximum flexibility wherever it is installed on board. It can go straight to a w... More Details

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Thetford Compass Eco Toilet - High, White - 24V

Marine Sanitation, Thetford Marine
$1,480.43
Compass Eco Toilet - High, White - 24V The narrow footprint and smart back of the Compass toilet give maximum space and maximum flexibility wherever it is installed on board. It can go straight to a w... More Details

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Thetford Compass Eco Toilet - Low, White - 12V

Marine Sanitation, Thetford Marine
$1,297.13
Compass Eco Toilet - Low, White - 12V The narrow footprint and smart back of the Compass toilet give maximum space and maximum flexibility wherever it is installed on board. It can go straight to a wa... More Details

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Thetford Compass Eco Toilet - Low, White - 24V

Marine Sanitation, Thetford Marine
$1,297.13
Compass Eco Toilet - Low, White - 24V The narrow footprint and smart back of the Compass toilet give maximum space and maximum flexibility wherever it is installed on board. It can go straight to a wa... More Details

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Thetford Compass Touch Toilet - High, White - 12V

Marine Sanitation, Thetford Marine
$1,973.93
Compass Touch Toilet - High, White - 12V The narrow footprint and smart back of the Compass toilet give maximum space and maximum flexibility wherever it is installed on board. It can go straight to a... More Details

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Thetford Compass Touch Toilet - High, White - 24V

Marine Sanitation, Thetford Marine
$1,973.93
Compass Touch Toilet - High, White - 24V The narrow footprint and smart back of the Compass toilet give maximum space and maximum flexibility wherever it is installed on board. It can go straight to a... More Details

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Thetford Compass Touch Toilet - Low, White - 12V

Marine Sanitation, Thetford Marine
$1,691.93
Compass Touch Toilet - Low, White - 12V The narrow footprint and smart back of the Compass toilet give maximum space and maximum flexibility wherever it is installed on board. It can go straight to a ... More Details

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Thetford Compass Touch Toilet - Low, White, 24V

Marine Sanitation, Thetford Marine
$1,691.93
Compass Touch Toilet - Low, White, 24V The narrow footprint and smart back of the Compass toilet give maximum space and maximum flexibility wherever it is installed on board. It can go straight to a w... More Details

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Thetford Drain Valve Lubricant - 24oz

Marine Sanitation, Thetford Marine
$12.68
Drain Valve Lubricant - 24oz Features: Prevents sticky valves Restores operation Coats plumbing lines for smooth tank outflow Works in both grey and black water tanks Lubricating additive This product... More Details

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Thetford Drain Valve Lubricant - Bilingual - 24oz

Accessories, Thetford Marine
$12.68
Drain Valve Lubricant - Bilingual - 24oz Features: Prevents sticky valves Restores operation Coats plumbing lines for smooth tank outflow Works in both grey and black water tanks Lubricating additive ... More Details

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Thetford Floor Plate f/565E Curve Toilet

Accessories, Thetford Marine
$49.34
Floor Plate for 565E Curve Toilet This floorplate is suitable to mount the Porta Potti 565 to the floor/deck of boats or wherever you want. One simple action releases the toilet. This product may not ... More Details

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Thetford Freshwater Solenoid Kit f/Nano Toilets - 12V

Accessories, Thetford Marine
$211.43
Freshwater Solenoid Kit for Nano Toilets - 12V Features: Allows use of onboard pressurized freshwater system and freshwater pump to be used for flushing function Compatible with Tecma Nano, Compass EC... More Details

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Thetford Hold Down Kit f/550P & Campa XT

Accessories, Thetford Marine
$42.29
Hold Down Kit for 550P & Campa XT Thetford hold-down kit is produced for 550P and Campa XT models. This product may not be returned to the original point of purchase. Please contact the manufacturer d... More Details

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Thetford Hold Down Kit f/Small Porta Potti

Accessories, Thetford Marine
$49.34
Hold Down Kit for Small Porta Potti This hold-down kit will fit Thetford Porta Potti model numbers 92868, 92865, 92871, 92859 and 92862 This product may not be returned to the original point of purcha... More Details

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Thetford MSD Spout

Blowers & Heaters, Thetford Marine
$38.38
MSD Spout Rotating pour-out spout This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns. Product Specifications Dimen... More Details

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Northern Marine Canada
Proudly Canadian Owned & Operated!
Serving customers across Canada & the USA with marine parts and accessories.
Canadian Head Office:
Kingston, Ontario, Canada
Warehouse Locations:
Toronto, Ontario, Canada
New Jersey, USA
Florida, USA

About Us

Northern Marine is a Canadian supplier of premium marine and RV parts and accessories from top industry brands. We focus on quality, accurate listings, and dependable fulfillment so you can maintain, repair, and outfit your boat or RV with confidence.

Our goal is simple: get you the right parts, shipped fast, with straightforward service you can count on.