U.S. Customers: Orders shipped from Canada may be subject to U.S. import duties, taxes, and/or tariffs as assessed by U.S. Customs and your carrier. These charges are not included in our product prices or shipping rates. You are responsible for any duties/tariffs/fees due on delivery or prior to delivery.
Packed and shipped within Canada!

Premium Marine Quality Parts

Results 22251 - 22275 of 58551
List
My Wishlist
Compare

Groco Th Bronze Standard Length Thru-Hull With Nut, Nps Thread - Th-1250-W - 34-Th1250Wf1

Groco, Thru-Hulls & Seacocks
$81.36

Should have threaded portion cut to proper length considering hull and butt block thickness. Consider thread depth when using a seacock. Sealant is recommended between hull and thru-hull flange. Includes nut.NOT TO BE USED IN POTABLE WATER SYSTEMS.

My Wishlist
Compare

Groco Th Bronze Standard Length Thru-Hull With Nut, Nps Thread - Th-1500-W - 34-Th1500Wf1

Groco, Thru-Hulls & Seacocks
$105.04

Should have threaded portion cut to proper length considering hull and butt block thickness. Consider thread depth when using a seacock. Sealant is recommended between hull and thru-hull flange. Includes nut.NOT TO BE USED IN POTABLE WATER SYSTEMS.

My Wishlist
Compare

Groco Th Bronze Standard Length Thru-Hull With Nut, Nps Thread - Th-2000-W - 34-Th2000Wf1

Groco, Thru-Hulls & Seacocks
$158.34

Should have threaded portion cut to proper length considering hull and butt block thickness. Consider thread depth when using a seacock. Sealant is recommended between hull and thru-hull flange. Includes nut.NOT TO BE USED IN POTABLE WATER SYSTEMS.

My Wishlist
Compare

Groco Th Bronze Standard Length Thru-Hull With Nut, Nps Thread - Th-2500-W - 34-Th2500Wf1

Groco, Thru-Hulls & Seacocks
$322.43

Should have threaded portion cut to proper length considering hull and butt block thickness. Consider thread depth when using a seacock. Sealant is recommended between hull and thru-hull flange. Includes nut.NOT TO BE USED IN POTABLE WATER SYSTEMS.

My Wishlist
Compare

Groco Th Bronze Standard Length Thru-Hull With Nut, Nps Thread - Th-3000-W - 34-Th3000Wf1

Groco, Thru-Hulls & Seacocks
$462.95

Should have threaded portion cut to proper length considering hull and butt block thickness. Consider thread depth when using a seacock. Sealant is recommended between hull and thru-hull flange. Includes nut.NOT TO BE USED IN POTABLE WATER SYSTEMS.

My Wishlist
Compare

Groco Th Bronze Standard Length Thru-Hull With Nut, Nps Thread - Th-4000-W - 34-Th4000Wf1

Groco, Thru-Hulls & Seacocks
$1,662.79

Should have threaded portion cut to proper length considering hull and butt block thickness. Consider thread depth when using a seacock. Sealant is recommended between hull and thru-hull flange. Includes nut.NOT TO BE USED IN POTABLE WATER SYSTEMS.

My Wishlist
Compare

Groco Th Bronze Standard Length Thru-Hull With Nut, Nps Thread - Th-500-W - 34-Th500Wf1

Groco, Thru-Hulls & Seacocks
$31.08

Should have threaded portion cut to proper length considering hull and butt block thickness. Consider thread depth when using a seacock. Sealant is recommended between hull and thru-hull flange. Includes nut.NOT TO BE USED IN POTABLE WATER SYSTEMS.

My Wishlist
Compare

Groco Th Bronze Standard Length Thru-Hull With Nut, Nps Thread - Th-750-W - 34-Th750Wf1

Groco, Thru-Hulls & Seacocks
$34.10

Should have threaded portion cut to proper length considering hull and butt block thickness. Consider thread depth when using a seacock. Sealant is recommended between hull and thru-hull flange. Includes nut.NOT TO BE USED IN POTABLE WATER SYSTEMS.

My Wishlist
Compare
My Wishlist
Compare

Groco Tht530 Thru Hull Installation Tool , Sizes 1/2" Through 3" - Tht-530 - 34-Tht530F1

Groco, Thru-Hulls & Seacocks
$304.59

Enables Installations GROCO thru-hull fittings by a single installer. Slide the thru-hull fitting, flanged end first, over the tool. (It will stop at the proper step.) Tie a length of monofilament to the eye and place it into the already-cut hole in the hull of the boat. Apply caulking to the flange of the fitting, and pull the fitting through the hole and against the hull from inside the boat. Thread the mono-filament through the locknut or seacock. With the fitting pulled firmly against the hull the locknut or the seacock may be screwed onto the fitting.

My Wishlist
Compare

Groco Thxl Bronze Extra-Length Thru-Hull With Nut, Nps Thread - Thxl-1000-W - 34-Thxl1000Wf1

Groco, Thru-Hulls & Seacocks
$76.98

Extra long through hull for installations where hull thickness dictates the use of longer fitting. Locknut included.NOT TO BE USED IN POTABLE WATER SYSTEMS.

My Wishlist
Compare

Groco Thxl Bronze Extra-Length Thru-Hull With Nut, Nps Thread - Thxl-1250-W - 34-Thxl1250Wf1

Groco, Thru-Hulls & Seacocks
$124.23

Extra long through hull for installations where hull thickness dictates the use of longer fitting. Locknut included.NOT TO BE USED IN POTABLE WATER SYSTEMS.

My Wishlist
Compare

Groco Thxl Bronze Extra-Length Thru-Hull With Nut, Nps Thread - Thxl-1500-W - 34-Thxl1500Wf1

Groco, Thru-Hulls & Seacocks
$133.10

Extra long through hull for installations where hull thickness dictates the use of longer fitting. Locknut included.NOT TO BE USED IN POTABLE WATER SYSTEMS.

My Wishlist
Compare

Groco Thxl Bronze Extra-Length Thru-Hull With Nut, Nps Thread - Thxl-2000-W - 34-Thxl2000Wf1

Groco, Thru-Hulls & Seacocks
$175.79

Extra long through hull for installations where hull thickness dictates the use of longer fitting. Locknut included.NOT TO BE USED IN POTABLE WATER SYSTEMS.

My Wishlist
Compare

Groco Thxl Bronze Extra-Length Thru-Hull With Nut, Nps Thread - Thxl-750-W - 34-Thxl750Wf1

Groco, Thru-Hulls & Seacocks
$60.70

Extra long through hull for installations where hull thickness dictates the use of longer fitting. Locknut included.NOT TO BE USED IN POTABLE WATER SYSTEMS.

My Wishlist
Compare

Groco Thxl1000Ws Stainless Steel Extra Long Thru-Hull Fittings, 1" - Thxl-1000-Ws - 34-Thxl1000Wsf1

Groco, Thru-Hulls & Seacocks
$90.79

Extra long NPSM / NPT combination thread#316 Stainless Steel

My Wishlist
Compare

Groco Thxl1250Ws Stainless Steel Extra Long Thru-Hull Fittings, 1-1/4" - Thxl-1250-Ws - 34-Thxl1250Wsf1

Groco, Thru-Hulls & Seacocks
$110.79

Extra long NPSM / NPT combination thread#316 Stainless Steel

My Wishlist
Compare

Groco Thxl1500Ws Stainless Steel Extra Long Thru-Hull Fittings, 1-1/2" - Thxl-1500-Ws - 34-Thxl1500Wsf1

Groco, Thru-Hulls & Seacocks
$112.19

Extra long NPSM / NPT combination thread#316 Stainless Steel

My Wishlist
Compare

Groco Thxl2000Ws Stainless Steel Extra Long Thru-Hull Fittings, 2" - Thxl-2000-Ws - 34-Thxl2000Wsf1

Groco, Thru-Hulls & Seacocks
$121.99

Extra long NPSM / NPT combination thread#316 Stainless Steel

My Wishlist
Compare

Groco Thxl750Ws Stainless Steel Extra Long Thru-Hull Fittings, 3/4" - Thxl-750-Ws - 34-Thxl750Wsf1

Groco, Thru-Hulls & Seacocks
$83.79

Extra long NPSM / NPT combination thread#316 Stainless Steel

My Wishlist
Compare

Groco Tp1500 Bronze Tail Piece, Nps Thread - Tp-1500 - 34-Tp1500F1

Groco, Miscellaneous
$90.19

TP tail pieces are threaded with NPS (straight) female pipe thread, and are for use with GROCO SV series seacocks or with any product with straight male pipe thread.NOT TO BE USED IN POTABLE WATER SYSTEMS.

My Wishlist
Compare

Groco Tp750 Bronze Tail Piece, Nps Thread - Tp-750 - 34-Tp750F1

Groco, Miscellaneous
$79.99

TP tail pieces are threaded with NPS (straight) female pipe thread, and are for use with GROCO SV series seacocks or with any product with straight male pipe thread.NOT TO BE USED IN POTABLE WATER SYSTEMS.

My Wishlist
Compare

Groco Tpc1000 Bronze Tail Piece 90°, Nps Thread - Tpc-1000 - 34-Tpc1000F1

Groco, Miscellaneous
$86.39

TPC series tail pieces are threaded with NPS (straight) female pipe thread, and are for use with GROCO SV series seacocks or with any product with straight male pipe thread. TPS series 90° tail pieces are comprised of two pieces. The swivel may be rotated in any direction to facilitate hook-up; then the nut is tightened.NOT TO BE USED IN POTABLE WATER SYSTEMS.

My Wishlist
Compare

Groco Tpc1250 Bronze Tail Piece 90°, Nps Thread - Tpc-1250 - 34-Tpc1250F1

Groco, Miscellaneous
$101.49

TPC series tail pieces are threaded with NPS (straight) female pipe thread, and are for use with GROCO SV series seacocks or with any product with straight male pipe thread. TPS series 90° tail pieces are comprised of two pieces. The swivel may be rotated in any direction to facilitate hook-up; then the nut is tightened.NOT TO BE USED IN POTABLE WATER SYSTEMS.

My Wishlist
Compare

Groco Tpc1500 Bronze Tail Piece 90°, Nps Thread - Tpc-1500 - 34-Tpc1500F1

Groco, Miscellaneous
$126.19

TPC series tail pieces are threaded with NPS (straight) female pipe thread, and are for use with GROCO SV series seacocks or with any product with straight male pipe thread. TPS series 90° tail pieces are comprised of two pieces. The swivel may be rotated in any direction to facilitate hook-up; then the nut is tightened.NOT TO BE USED IN POTABLE WATER SYSTEMS.

Page 891 of 2343
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.