Thru hull fittings
ROCA offers all the high-quality thru-hull fittings you are looking for. They’re easy to install, elegant, strong, and flexible.
For boat builders that know that a quality fit and finish pays off.
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Thru-hull 1″, forged
GEM Forged Thru-Hulls are designed with a revolutionary single piece forging process.Select options- Forged from semi-conductor tubing
- Easy, one man installation
- Endless plumbing possiblities
Adapter 1″, straight
Select options- Constructed from Nylon 6/6
- Compliant with ABYC 500# static load standard
Adapter 1″, 90°
Select options- Constructed from Nylon 6/6
- Compliant with ABYC 500# static load standard
Thru-hull 1.5″, forged
Select optionsGEM Forged Thru-Hulls are designed with a revolutionary single piece forging process.
- Forged from semi-conductor tubing
- Easy, one man installation
- Endless plumbing possiblities
Adapter 1.5″, straight
Select options- Constructed from Nylon 6/6
- Compliant with ABYC 500# static load standard
Adapter 1.5″, 90°
Select options- Constructed from Nylon 6/6
- Compliant with ABYC 500# static load standard
