Boat/Marine Plumbing Components & Hardware | Boat Plumbing Parts
GEM offers a variety of Plumbing, Venting, and Fuel System products to ensure high quality and performance.

We now offer a COMPLETE lineup of composite marine fittings and valves. We have partnered with TruDesign, a well-established, 45-year-old New Zealand company. All of their design, tooling, and manufacturing is done in-house, which is important for the future of product expansion and innovation. We also chose TruDesign as a partner due to their extensive knowledge of the marine plumbing segment.  They carry numerous ABYC, UL, and other certifications.  

They are working with us to expand their product line with the help of our engineering team, and their tooling and manufacturing capabilities greatly benefit GEM and our ability to make our customer's boats better. We see this product line as the future of marine plumbing and we are excited to be part of it. 
nx

Adapter .75" NPS Female .75" NPS Male 90deg, Black
Regular price
$9.10
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$9.10
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Adapter 1" NPS Female 1" NPS Male 90deg, Black
Regular price
$9.43
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$9.43
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Adapter 1.25" NPS Female 1.25" NPS Male 90deg, Black
Regular price
$10.96
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$10.96
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Adapter 1.5” NPS Female 1.5" NPS Male 90deg
Regular price
$12.02
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$12.02
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Adapter 2" NPS Female 2" NPS Male 90deg, Black
Regular price
$17.69
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$17.69
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Stainless Steel Angled Drain Plug For Boat
Regular price
$70.61
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$70.61
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Angled Drain Plug, Short
Regular price
$70.63
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$70.63
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Ball Valve .5" NPS, Black
Regular price
$43.92
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$43.92
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Ball Valve .75" NPS, Black
Regular price
$47.43
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$47.43
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1.25" Ball Valves - NPS, Black
Regular price
$87.36
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$87.36
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Ball Valve 1.5" NPS, Black
Regular price
$106.83
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$106.83
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Ball Valve 2", NPT Full EP
Regular price
$367.74
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$367.74
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Ball Valve Position Monitored 1.5" NPS, Black
Regular price
$134.51
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$134.51
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Check Valve .75", Black
Regular price
$13.79
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$13.79
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Check Valve 1", Black
Regular price
$14.74
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$14.74
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Check Valve 1.125", Black
Regular price
$18.52
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$18.52
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Check Valve 1.25", Black
Regular price
$18.52
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$18.52
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Check Valve 1.5", Black
Regular price
$25.57
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$25.57
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Check Valve 2", Black
Regular price
$27.63
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$27.63
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Connector 3 Way, White
Regular price
$46.78
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$46.78
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Extension Pack Y Valve (Aquavalve) Through Bulkhead, Black
Regular price
$7.64
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$7.64
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Fascia Upgrade Pack, Black
Regular price
$17.82
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$17.82
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Garboard Boat Drain Plugs NPT With Lanyard
Regular price
$24.53
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$24.53
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Hose Barb .5" x.5" NPS Long Male Thread, Black
Regular price
$2.31
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$2.31
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