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Home
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Thru-Hull, Drain Tube & Scuppers
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Thru-Hull, Drain Tube & Scuppers
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Forespar 2 Round Thru Hull Cf251 906020
$
47.99
$
42.99
Made from high strength glass-reinforced Marelon. Ideal for use above or below the waterline. Must be installed with proper bedding compound. Recommend a maximum torque setting of 20 lb/ft.. Item number 906031 comes with screen. MFG# 906020 UPC# 028026149237
Availability:
42 item(s)
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Forespar 2 Round Thru Hull CF253 108-906032
$
45.19
$
39.99
Made from high strength glass-reinforced Marelon. Ideal for use above or below the waterline. Must be installed with proper bedding compound. Recommend a maximum torque setting of 20 lb/ft.. Item number 906031 comes with screen. MFG# 108-906032 108906032 UPC# 028026149350
Availability:
50 item(s)
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Forespar 3/4 Round Thru Hull CF 253 108-906024
$
34.11
$
28.99
Made from high strength glass-reinforced Marelon. Ideal for use above or below the waterline. Must be installed with proper bedding compound. Recommend a maximum torque setting of 20 lb/ft.. Item number 906031 comes with screen. MFG# 108-906024 108906024 UPC# 028026149275
Availability:
83 item(s)
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Forespar 3/4 Round Thru Hull CF251 108-906012
$
34.11
$
28.99
Made from high strength glass-reinforced Marelon. Ideal for use above or below the waterline. Must be installed with proper bedding compound. Recommend a maximum torque setting of 20 lb/ft.. Item number 906031 comes with screen. MFG# 108-906012 108906012 UPC# 028026149152
Availability:
46 item(s)
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Forespar Flush Thru Hull 3/4 906002
$
32.93
$
27.99
Made from high strength glass-reinforced Marelon. Ideal for use above or below the waterline. Must be installed with proper bedding compound. Recommend a maximum torque setting of 20 lb/ft.. Item number 906031 comes with screen. MFG# 906002 UPC# 028026149053
Availability:
8 item(s)
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Forespar Flush Thru-Hull 1 1/2 906008
$
35.99
$
34.99
Made from high strength glass-reinforced Marelon. Ideal for use above or below the waterline. Must be installed with proper bedding compound. Recommend a maximum torque setting of 20 lb/ft.. Item number 906031 comes with screen. MFG# 906008 UPC# 028026149114
Availability:
30 item(s)
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Forespar Flush Thru-Hull 1 1/4 906006
$
32.93
$
27.99
Made from high strength glass-reinforced Marelon. Ideal for use above or below the waterline. Must be installed with proper bedding compound. Recommend a maximum torque setting of 20 lb/ft.. Item number 906031 comes with screen. MFG# 906006 UPC# 028026149091
Availability:
21 item(s)
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Forespar Flush Thru-Hull 1/2 108-906000
$
29.40
$
24.99
Made from high strength glass-reinforced Marelon. Ideal for use above or below the waterline. Must be installed with proper bedding compound. Recommend a maximum torque setting of 20 lb/ft.. Item number 906031 comes with screen. MFG# 108-906000 108906000 UPC# 028026149039
Availability:
22 item(s)
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Forespar Thru-Hull 1 Flush With/Nut 906004
$
32.93
$
27.99
Made from high strength glass-reinforced Marelon. Ideal for use above or below the waterline. Must be installed with proper bedding compound. Recommend a maximum torque setting of 20 lb/ft.. Item number 906031 comes with screen. MFG# 906004 UPC# 028026149077
Availability:
19 item(s)
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Groco HTHC2000S
$
170.00
$
146.99
MFG# HTHC2000S UPC# 742985142138
Availability:
19 item(s)
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Groco HTHC750S
$
54.00
$
47.99
MFG# HTHC750S UPC# 742985139282
Availability:
73 item(s)
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Groco #316 SS Hose Thru-Hull 90 Degree With Bronze Nut - HTHC1250S
$
105.00
$
90.99
MFG# HTHC1250S UPC# 742985139305
Availability:
30 item(s)
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Groco #316 Ss Hth-s Series Thru Hull Fitting HTH-625-S
$
41.16
$
34.99
#316 SS HTH-S Series Thru Hull Fitting NPS pipe size 3/4" Hose ID 5/8" Length 2.71"br> Thru hull width 1.90" Weight .44 Has lock nut with bonding screw MFG# HTH-625-S HTH625S UPC# 742985138971
Availability:
106 item(s)
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Groco 1 1/2" Scoop Thru Hull W/nut STH-1500-W
$
96.00
$
82.99
1 1/2" SCOOP THRU HULL W/NUT MFG# STH-1500-W STH1500W UPC# 742985063921
Availability:
74 item(s)
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Groco 1 1/2" Thru Hull With Nut TH-1500-W
$
71.00
$
61.99
1 1/2" THRU HULL WITH NUT MFG# TH-1500-W TH1500W UPC# 742985064133
Availability:
262 item(s)
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GROCO 1 Scoop Thru-Hull w/Nut STH-100-W
$
60.00
$
52.99
Includes locking nut. NOT TO BE USED IN POTABLE WATER SYSTEMS. MFG# STH-100-W STH100W UPC# 742985170896
Availability:
4 item(s)
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GROCO 1 Thru-Hull With Nut TH-100-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. Includes nut. NOT TO BE USED IN POTABLE WATER SYSTEMS. MFG# TH-100-W TH100W UPC# 742985170995
Availability:
20 item(s)
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Groco 1" Scoop Thru Hull With Nut STH-1000-W
$
60.00
$
52.99
1" SCOOP THRU HULL WITH NUT MFG# STH-1000-W STH1000W UPC# 742985063907
Availability:
187 item(s)
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GROCO 1-1/2 Scoop Thru-Hull w/Nut STH-150-W
$
96.00
$
82.99
Includes locking nut. NOT TO BE USED IN POTABLE WATER SYSTEMS. MFG# STH-150-W STH150W UPC# 742985170919
Availability:
2 item(s)
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GROCO 1-1/2 Thru-Hull With Nut TH-150-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. Includes nut. NOT TO BE USED IN POTABLE WATER SYSTEMS. MFG# TH-150-W TH150W UPC# 742985171039
Availability:
21 item(s)
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GROCO 1-1/4 Thru-Hull With Nut TH-125-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. Includes nut. NOT TO BE USED IN POTABLE WATER SYSTEMS. MFG# TH-125-W TH125W UPC# 742985171015
Availability:
4 item(s)
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GROCO 2 Thru-Hull With Nut TH-200-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. Includes nut. NOT TO BE USED IN POTABLE WATER SYSTEMS. MFG# TH-200-W TH200W UPC# 742985171053
Availability:
12 item(s)
Quantity:
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GROCO 3/4 Scoop Thru-Hull w/Nut STH-75-W
$
61.16
$
51.99
Includes locking nut. NOT TO BE USED IN POTABLE WATER SYSTEMS. MFG# STH-75-W STH75W UPC# 742985170896
Availability:
12 item(s)
Quantity:
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GROCO 3/4 Thru-Hull With Nut TH-75-W
$
35.28
$
29.99
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-75-W TH75W UPC# 742985170971
Availability:
4 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
Availability:
171 item(s)
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Groco HTHC-S #316 SS Hose Thru-Hull 90 Degree With Bronze Nut - HTHC1000S
$
67.00
$
58.99
Hose 1" I.D. Pipe 1" NPT Flange 2.32" Includes locknut MFG# HTHC1000S UPC# 742985139299
Availability:
67 item(s)
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Groco RSC Bronze Round Hull Strainer With Access RSC-2000
$
121.00
$
104.99
Bronze. With mounting ring. Easy access to the thru-hull fitting and seacock beneath Groco hull strainer with patented access door design. No need to remove the entire strainer to clear nuisance marine growth. NOT TO BE USED IN POTABLE WATER SYSTEMS. MFG# RSC-2000 RSC2000
Availability:
2 item(s)
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Groco SS Hose Thru-hull 1" Hose HTH1000S
$
41.00
$
38.99
MFG# HTH1000S UPC# 742985139039
Availability:
149 item(s)
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Groco Stainless/Bronze Thru-Hull 90 HTHC1500S
$
186.00
$
160.99
Includes locknut. MFG# HTHC1500S UPC# 742985139312
Availability:
47 item(s)
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Groco STH Bronze Scoop Thru-Hull With Nut STH-2500-W
$
236.00
$
187.99
Includes locking nut. NOT TO BE USED IN POTABLE WATER SYSTEMS. MFG# STH-2500-W STH2500W UPC# 742985170933
Availability:
19 item(s)
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Groco Thru Hull Flush W/Nut 1 FTH1000W
$
33.00
$
30.99
Has locknut with bonding screw. Comes with nut. Bronze. MFG# FTH1000W UPC# 742985002678
Availability:
48 item(s)
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Groco Thru Hull Flush W/Nut 1-1/2 FTH1500W
$
71.00
$
61.99
Has locknut with bonding screw. Comes with nut. Bronze. MFG# FTH1500W UPC# 742985003606
Availability:
42 item(s)
Quantity:
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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
Availability:
284 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
Availability:
55 item(s)
Quantity:
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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
Availability:
262 item(s)
Quantity:
+
−
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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
Availability:
49 item(s)
Quantity:
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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
Availability:
262 item(s)
Quantity:
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−
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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
Availability:
41 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
Availability:
253 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
Availability:
126 item(s)
Quantity:
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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
Availability:
21 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
Availability:
80 item(s)
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Gross Mechanical Labs Groco 3/4 Thru-Hull With Nut TH-750-W
$
29.40
$
24.99
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
Availability:
600 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
Availability:
50 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
Availability:
122 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...
Availability:
38 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
Availability:
48 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
Availability:
186 item(s)
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