Now Stocking Interlux Bottom Paint 

Click HERE to see our full Interlux line

Groco Combo Thru Hull

Groco TH-1000-W Bronze 1" NPS/NPT Combo Thru Hull (w/Nut) | Blackburn Marine Thru Hulls
GROCO TH-500-W 1/2" TH-500-W 
GROCO TH-750-W 3/4" TH-750-W
GROCO TH-1000-W 1" TH-1000-W
GROCO TH-1250-W 1-1/4 TH-1250-W
GROCO TH-1500-W 1-1/2 TH-1500-W
GROCO TH-2000-W 2" TH-2000-W
GROCO TH-2500-W 2-1/2" TH-2500-W
GROCO TH-3000-W 3" TH-3000-W

 

Groco TH Series Thru Hulls

1" NPS NPT Combo Bronze Thru Hull (with nut)

Features:
  • NPSM/NPT combination thread
  • C83600 Bronze
  • UL Listed 647B
Options:
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