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Thru-Hull, Drain Tube & Scuppers

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Conbraco Industries Inc Sea-Flange Valve 3/4" 78-115-01F
$219.79 $138.99
Full-flow, 85-5-5-5 bronze ball valves are designed to replace the old style sea cocks. Stainless steel handle and stem nut, chrome plated bronze ball, glass reinforced TFE seats and seals and body drain plug. U.L. listed. Made in U.S.A. MFG# 78-115-01F 7811501F UPC# 670750709661
22 item(s)
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Groco 3/4"" Xtra-Long T-Hull With Nut - THXL-750-W
$39.00 $36.99
For installations where hull thickness dictates the use of longer fitting. MFG# THXL-750-W THXL750W UPC# 742985141742 MFG# THXL-750-W THXL750W UPC# 742985141742
178 item(s)
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Gross Mechanical Labs Groco 1 Thru-Hull With Nut TH-1000-W
$39.99 $33.99
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. Has locknut with bonding screw. Comes with nut. MFG# TH-1000-W TH1000W UPC# 742985064119
300 item(s)
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Gross Mechanical Labs Groco 1" Xtra-Long T-Hull With Nut Thxl-1000-W
$50.00 $43.99
For installations where hull thickness dictates the use of longer fitting. Locknut has bonding connection. MFG# THXL-1000-W THXL1000W UPC# 742985141759
59 item(s)
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Gross Mechanical Labs Groco 1-1/2 Thru-Hull With Nut TH-1500-W
$71.00 $61.99
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. Has locknut with bonding screw. Comes with nut. MFG# TH-1500-W TH1500W UPC# 742985064133
228 item(s)
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Gross Mechanical Labs Groco 1-1/2" Xtra-Long T-Hull With/Nut THXL-1500-W
$86.00 $73.99
For installations where hull thickness dictates the use of longer fitting. Locknut has bonding connection. MFG# THXL-1500-W THXL1500W UPC# 742985141773
57 item(s)
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Gross Mechanical Labs Groco 1-1/4 Thru-Hull With Nut TH-1250-W
$55.00 $47.99
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. Has locknut with bonding screw. Comes with nut. MFG# TH-1250-W TH1250W UPC# 742985064126
285 item(s)
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Gross Mechanical Labs Groco 1-1/4" Xtra-Long T-Hull With/Nut Thxl-1250-W
$80.00 $68.99
For installations where hull thickness dictates the use of longer fitting. Locknut has bonding connection. MFG# THXL-1250-W THXL1250W UPC# 742985141766
45 item(s)
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Gross Mechanical Labs Groco 1/2 Thru-Hull With Nut TH-500-W
$31.75 $26.99
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. Has locknut with bonding screw. Comes with nut. MFG# TH-500-W TH500W UPC# 742985064096
229 item(s)
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Gross Mechanical Labs Groco 2 Thru-Hull With Nut TH-2000-W
$106.00 $91.99
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. Has locknut with bonding screw. Comes with nut. MFG# TH-2000-W TH2000W UPC# 742985005174
119 item(s)
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Gross Mechanical Labs Groco 2" Xtra-Long T-Hull With Nut THXL-2000-W
$119.00 $102.99
For installations where hull thickness dictates the use of longer fitting. Locknut has bonding connection. MFG# THXL-2000-W THXL2000W UPC# 742985141780
27 item(s)
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Gross Mechanical Labs Groco 2-1/2 Thru-Hull With Nut TH-2500-W
$209.00 $166.99
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. Has locknut with bonding screw. Comes with nut. MFG# TH-2500-W TH2500W UPC# 742985064157
73 item(s)
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Gross Mechanical Labs Groco 3/4 Thru-Hull With Nut TH-750-W
$31.75 $26.99
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. Has locknut with bonding screw. Comes with nut. MFG# TH-750-W TH750W UPC# 742985064102
730 item(s)
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Gross Mechanical Labs Groco Drain Wingut With/ O-Ring ARG506
$19.99 $16.99
Service kits for ARG strainers. Contain cap O-ring, sight glass O-ring, washer and drain wingnut gasket. MFG# ARG506 UPC# 742985008878
75 item(s)
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Gross Mechanical Labs Groco High Speed 3/4"" T-Hull With/Nut HSTH-750-W
$29.40 $24.99
Provides low pressure, low profile flow into plumbing system. Includes locknut. MFG# HSTH-750-W HSTH750W UPC# 742985141728
155 item(s)
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Gross Mechanical Labs Groco TH Bronze Standard Length Thru-Hull With Nut, NPS Thread ...
$299.00 $238.99
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. MFG# TH-3000-W TH3000W UPC# 742985064164 MFG# TH-3000-W...
33 item(s)
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Gross Mechanical Labs Groco Thru Hull Flush With/Nut 3/4 FTH750W
$23.00 $21.99
Has locknut with bonding screw. Comes with nut. Bronze. MFG# FTH750W UPC# 742985002609
86 item(s)
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Gross Mechanical Labs Groco Thru-Hull 1-1/2 SS HTH1500S
$84.00 $73.99
Includes locknut. Stainless Steel. MFG# HTH1500S UPC# 742985139015
190 item(s)
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Gross Mechanical Labs Groco Thru-Hull 1-1/4 SS HTH1250S
$69.00 $60.99
Includes locknut. Stainless Steel. MFG# HTH1250S UPC# 742985139008
54 item(s)
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Gross Mechanical Labs Groco Thru-Hull 1-1/8 SS HTH1125S
$42.00 $39.99
Includes locknut. Stainless Steel. MFG# HTH1125S UPC# 742985138995
209 item(s)
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Gross Mechanical Labs Groco Thru-Hull 1/2 SS HTH500S
$39.00 $36.99
Includes locknut. Stainless Steel. MFG# HTH500S UPC# 742985142121
93 item(s)
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Gross Mechanical Labs Groco Thru-Hull 2 SS HTH2000S
$104.00 $89.99
Includes locknut. Stainless Steel. MFG# HTH2000S UPC# 742985139022
83 item(s)
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Gross Mechanical Labs Groco Thru-Hull 3/4 SS HTH750S
$41.16 $34.99
Includes locknut. Stainless Steel. MFG# HTH750S UPC# 742985138988
206 item(s)
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Perko 1 1/2 Thru Hull Connection 0350008DPP
$150.49 $91.99
Available in plain or chrome plated bronze, these fittings have a hose barb connection and are recommended for use above the waterline only. The flange is machined to fit the hull tightly and grooved to retain bedding compound. Minimum hull thickness 3/8". MFG# 0350008DPP UPC# 085226036163
50 item(s)
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