Description
GROCO 1" Extra Long Thru-Hull Fitting | Boat Supply Store
For installations requiring extended reach or accommodating thicker hull materials, this GROCO thru-hull fitting provides an engineered solution. Constructed from marine-grade #316 stainless steel, it offers superior resistance to galvanic corrosion and pitting in saltwater environments. The 1-inch size and NPSM/NPT combination thread design ensures broad compatibility with standard marine plumbing components, making it suitable for bilge pump discharges, raw water intakes, or transducer installations on vessels operating in challenging coastal or offshore conditions.
Key Features
- Superior Corrosion Resistance with #316 Stainless Steel construction
- Extended Reach for thicker hull installations
- Versatile Threading with NPSM / NPT combination
- Durable Hardware built for demanding marine use
- Reliable Sealing when properly installed
- Complete Kit includes necessary nut
- Engineered for Longevity in harsh marine environments
- 1-Inch Sizing for common plumbing applications
Specifications
| Product Specifications | |
|---|---|
| Size | 1" |
| Material | #316 Stainless Steel |
| Thread Type | NPSM / NPT Combination |
| Includes | Nut |
Who This Is For
Boat owners and marine mechanics seeking a robust, corrosion-resistant thru-hull fitting for installations on thicker hull materials or where extended reach is necessitated. This fitting is particularly beneficial for custom plumbing configurations and repairs demanding high-quality components.
How It Compares
| Feature | GROCO 1" Extra Long Thru-Hull Fitting | Perko 04990099A |
|---|---|---|
| Material | #316 Stainless Steel | Bronze |
| Length | Extra Long | Typically less capable |
| Thread Type | NPSM / NPT Combination | NPT |
| Includes Nut | Yes | Yes |
Common Concerns Answered
Are there any concerns about finding exact replacement parts for older installations?
While this extra-long fitting is designed for specific applications, the NPSM/NPT thread combination offers broad compatibility. For older or custom installations, verifying thread compatibility and hull thickness is recommended to ensure a proper fit.
What precautions should be taken to avoid hull damage during installation?
Correct installation is critical; overtightening can compromise hull integrity. Ensure proper sealing techniques and use appropriate tools to achieve a secure fit without excessive force. Consulting installation guides or seeking professional assistance for complex thru-hull replacements is advised.
Is the price justified compared to standard bronze fittings?
The premium price of this #316 stainless steel fitting is offset by its significantly enhanced durability and corrosion resistance, particularly in harsh marine environments. This investment ensures long-term reliability and reduces the likelihood of premature failure or costly repairs compared to less robust materials.
Frequently Asked Questions
What is the thread type of the GROCO THXL-1000-WS thru-hull fitting?
The GROCO THXL-1000-WS features an NPSM (National Pipe Straight Mechanical) and NPT (National Pipe Taper) combination thread.
What material is the GROCO THXL-1000-WS thru-hull fitting made of?
This thru-hull fitting is constructed from #316 Stainless Steel, renowned for its exceptional corrosion resistance in marine environments.
What is the size of the GROCO THXL-1000-WS thru-hull fitting?
The GROCO THXL-1000-WS is a 1-inch thru-hull fitting.
Is the nut included with the GROCO THXL-1000-WS thru-hull fitting?
Yes, the nut is included with the GROCO THXL-1000-WS thru-hull fitting.
What is the purpose of an extra-long thru-hull fitting?
An extra-long thru-hull fitting is designed to accommodate vessels with thicker hull constructions or to provide extended reach beyond the hull surface, facilitating easier connection of plumbing components or accessory installations where standard fittings may not suffice.
