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Premium Marine Quality Parts

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Mec Megr253Ppt24 Marshall Excelsior Megr253Ppt24 Excela-Flo Automatic Standard Capacity Changeover Regulator W/24' Hose, Packaged - Megr-253P-Pt24 - 277-Megr253Ppt24F1

Marshall Excelsior Co., Batteries & Charging
$207.59

The Automatic Changeover Regulator automatically redirects LP gas vapor flow from an empty service cylinder to a reserve cylinder, without interruption of service. It features an easy to read green indicator which changes to red when the service cylinder needs to be refilled. Meets UL, RVIA and NFPA requirements. Type: Two StageMax Inlet Pressure: 250 PSIInlet Connection: 1/4" Female Inverted FlareOutlet Connection: 3/8" FNPTExterior Finish: Raw Zinc / Powder CoatDiaphragm: Fabric Reinforced Molded with O-Ring Bonnet / Body SealDiaphragm Type: Internal Relief - Spring LoadedBonnet/ Body Material: Die Cast ZincListings: UL LISTED / UL 144Mounting Holes: 3-1/2" On CenterPressure Taps: 1/8" FNPT Plugged

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Mec Mekit1 Low Pressure Test Kit - Me-Kit-1 - 277-Mekit1F1

Marshall Excelsior Co., Miscellaneous
$306.39

Designed to check for gas leaks by verifying the line pressure of an appliance. Each kit includes a case, gauge, and rubber hose with a rubber boot connection.

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Mec Mer425Hss15P High Capacity Qcc Stainless Steel Braided Hose, 15" - Mer425Hss-15P - 277-Mer425Hss15Pf1

Marshall Excelsior Co., Hoses, Clamps & Fittings
$80.79

Red Type 1 Nut. 400,000 BTU/H. Approved for RV applications

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Mec Mer425Hss15P2 High Capacity Qcc Stainless Steel Braided Hose, 15", 2/Pk - Mer425Hss-15P2 - 277-Mer425Hss15P2F1

Marshall Excelsior Co., Hoses, Clamps & Fittings
$149.49

Red Type 1 Nut. 400,000 BTU/H. Approved for RV applications.

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Mec Mer425Hss24P High Capacity Qcc Stainless Steel Braided Hose, 24" - Mer425Hss-24P - 277-Mer425Hss24Pf1

Marshall Excelsior Co., Hoses, Clamps & Fittings
$110.59
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Mec Mer425Ss15P Standard Qcc, Stainless Steel Braided Hose, 15" - Mer425Ss-15P - 277-Mer425Ss15Pf1

Marshall Excelsior Co., Hoses, Clamps & Fittings
$89.09
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Mec Mer425Ss15P2 Standard Qcc, Stainless Steel Braided Hose, 15" 2/Pack - Mer425Ss-15P2 - 277-Mer425Ss15P2F1

Marshall Excelsior Co., Hoses, Clamps & Fittings
$178.49
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Mec Mer425Ss24P2 Standard Qcc, Stainless Steel Braided Hose, 24" 2/Pack - Mer425Ss-24P2 - 277-Mer425Ss24P2F1

Marshall Excelsior Co., Hoses, Clamps & Fittings
$169.39
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Mec Mer425Ss25P Standard Qcc, Stainless Steel Braided Hose, 24" - Mer425Ss-24P - 277-Mer425Ss24Pf1

Marshall Excelsior Co., Hoses, Clamps & Fittings
$82.79
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Mec Mer42615P2 1/4" I.D. Propane Hose, 426 Series, 15" 2/Pk - Mer426-15P2 - 277-Mer42615P2F1

Marshall Excelsior Co., Fittings, Hoses & Valves
$61.79
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Mec Mer470 Flow-Longer Propane Kit - Mer470 - 277-Mer470F1

Marshall Excelsior Co., Miscellaneous
$225.39

The Flow-Longer Propane Kits are designed to connect small, portable appliances, normally fueled by disposable LP-Gas cylinders, to the existing LP-Gas fuel supply of a recreational vehicle, cottage, backyard patio, etc. without interrupting the supply of regulated fuel to the system. Flow-Longer eliminates the need to purchase an extra LP-Gas cylinder or several small, disposable type cylinders. MER470 includes Brass tee connection (ME415) .9 GPM excess flow male hard nose POL x female POL x 1"-20 male and 12' foot hose (MER421-144) 1"-20 male x 1"-20 female

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Mec Mer472 Stay-Longer Propane Kit - Mer472 - 277-Mer472F1

Marshall Excelsior Co., Miscellaneous
$183.89

The Stay-Longer Propane Kits are designed to give you new flexibility on how you use your LP-Gas. You can stay longer by hooking up auxiliary LP-Gas cylinders, or you can tap into the RV's LP-Gas system to fuel portable high-pressure appliances. MER472 includes Brass tee connection (ME420) .9 GPM excess flow male hard nose POL x female POL x 1"-20 male x 1/4" female inverted flare and 5' hose (MER401-60) .9 GPM excess flow male POL x 1/4" male inverted flare

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Mec Mer473 Stay-Longer Propane Kit - Mer473 - 277-Mer473F1

Marshall Excelsior Co., Miscellaneous
$274.39

The Stay-Longer Propane Kits are designed to give you new flexibility on how you use your LP-Gas. You can stay longer by hooking up auxiliary LP-Gas cylinders, or you can tap into the RV's LP-Gas system to fuel portable high-pressure appliances. MER473 includes Brass tee connection (ME420) .9 GPM excess flow male hard nose POL x female POL x 1"-20 male x 1/4" female inverted flare, 5' hose (MER401-60) .9 GPM excess flow male hard nose POL x 1/4" male inverted flare, and 12' hose (MER421-144) 1"-20 male x 1"-20 female

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Mec Mestf33P Bulkhead Straight Flare Fitting-Brass - Mestf33-1 - 277-Mestf33Pf1

Marshall Excelsior Co., Hoses, Clamps & Fittings
$14.82

RV Bulkhead 3/8" Male Flare x 3/8" Male Flare

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Mec Propane Adaptor Hose, 12' Carded - Mer407-144 - 277-Mer407144F1

Marshall Excelsior Co., Fittings, Hoses & Valves
$110.79

For high pressure appliances. The 407 adaptor hoses have a safe, convenient, "user-friendly" design that makes it ideal for hooking up portable, high pressure propane appliances such as camp stoves, lanterns, and table top grills to large cylinders. Soft nose handwheel POL x 1"-20 male swivel.

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Mec Propane Adaptor Hose, 5' Carded - Mer407-60 - 277-Mer40760F1

Marshall Excelsior Co., Fittings, Hoses & Valves
$84.99

For high pressure appliances. The 407 adaptor hoses have a safe, convenient, "user-friendly" design that makes it ideal for hooking up portable, high pressure propane appliances such as camp stoves, lanterns, and table top grills to large cylinders. Soft nose handwheel POL x 1"-20 male swivel.

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Mec Propane Adaptor Hose, 5' Clamshell - Mer407-60P - 277-Mer40760Pf1

Marshall Excelsior Co., Fittings, Hoses & Valves
$80.29

For high pressure appliances. The 407 adaptor hoses have a safe, convenient, "user-friendly" design that makes it ideal for hooking up portable, high pressure propane appliances such as camp stoves, lanterns, and table top grills to large cylinders. Soft nose handwheel POL x 1"-20 male swivel.

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Mec Quick Disconnect Hose Assemblies, 144 Packaged - Mer14Tcqd-144P - 277-Mer14Tcqd144Pf1

Marshall Excelsior Co., Hoses, Clamps & Fittings
$141.29

High pressure hose that will allow you to hook up to a Quick-Connect valve on an appliance to an LP gas cylinder. For use with low pressure gas appliances (i.e. 14 water column). Includes shut-off valve. Regulator not included. HP hose 1/4" ID, QD X 1/4" MNPT w/cap.

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Mec Quick Disconnect Hose Assemblies, 72 Packaged - Mer14Tcqd-72P - 277-Mer14Tcqd72Pf1

Marshall Excelsior Co., Hoses, Clamps & Fittings
$104.59

High pressure hose that will allow you to hook up to a Quick-Connect valve on an appliance to an LP gas cylinder. For use with low pressure gas appliances (i.e. 14 water column). Includes shut-off valve. Regulator not included. HP hose 1/4" ID, QD X 1/4" MNPT w/cap.

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Mec Quick Disconnect Hose Assemblies, 72" Bulk - Mer14Tcqd-72 - 277-Mer14Tcqd72F1

Marshall Excelsior Co., Hoses, Clamps & Fittings
$114.79

High pressure hose that will allow you to hook up to a Quick-Connect valve on an appliance to an LP gas cylinder. For use with low pressure gas appliances (i.e. 14" water column). Includes shut-off valve. Regulator not included. HP hose 1/4" ID, QD X 1/4" MNPT w/cap.

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Mec Quick Disconnect Hose Assembly, 120" Bulk - Mer14Tcmpqd-120 - 277-Mer14Tcmpqd120F1

Marshall Excelsior Co., Hoses, Clamps & Fittings
$89.49

High pressure hose that will allow you to hook up to a Quick-Connect valve on an appliance to an LP gas cylinder. For use with low pressure gas appliances (i.e. 14" water column). Regulator not included. HP hose 1/4" ID, QD X 1/4" MNPT w/cap.

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Mec Quick Disconnect Hose Assembly, 72" Packaged - Mer14Tcmpqd-72P - 277-Mer14Tcmpqd72Pf1

Marshall Excelsior Co., Hoses, Clamps & Fittings
$45.59

High pressure hose that will allow you to hook up to a Quick-Connect valve on an appliance to an LP gas cylinder. For use with low pressure gas appliances (i.e. 14" water column). Regulator not included. HP hose 1/4" ID, QD X 1/4" MNPT w/cap.

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Mec Quick Disconnect Hose Assembly, 72" Packaged - Mer14Tcqdmp-72P - 277-Mer14Tcqdmp72Pf1

Marshall Excelsior Co., Hoses, Clamps & Fittings
$114.89

High pressure hose that will allow you to hook up to a Quick-Connect valve on an appliance to an LP gas cylinder. For use with low pressure gas appliances (i.e. 14" water column). Includes shut-off valve. Regulator not included. HP hose Female QD and 1/4 QD Nipple.

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Mechanical Seal - 6408-0000 - 6-64080000F1

Jabsco, Seals, Gaskets & Service Kits
$180.49
Northern Marine Canada
Our products are shipped from Canada!
Parts Warehouse:
Toronto, Ontario, Canada
Head Office:
Kingston, Ontario

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.