Description
GROCO 1-1/4" High Speed Thru-Hull w/Nut | Boat Supply Store
Engineered for enhanced hydrodynamic performance, this GROCO thru-hull fitting significantly increases water flow and minimizes drag compared to conventional designs. Constructed from durable C83600 bronze, it ensures long-term corrosion resistance in demanding marine environments. The integral nut and the unique NPSM/NPT combination thread facilitate versatile and secure installations for critical systems such as livewells and raw water intakes on performance-oriented vessels.
Key Features
- Maximize Flow designed for increased water volume compared to standard thru-hulls
- Reduce Drag optimized for high-speed applications to minimize resistance
- Corrosion Resistant constructed from robust C83600 Bronze for longevity
- Versatile Threading features a combined NPSM / NPT thread for broad compatibility
- Complete Assembly includes the necessary nut for a secure installation
- High Performance ideal for livewells, baitwells, and raw water intakes
- Durable Construction built to withstand harsh marine conditions
- Reliable Brand backed by GROCO's reputation for marine hardware excellence
Specifications
| Product Specifications | |
|---|---|
| Size | 1-1/4" |
| Material | C83600 Bronze |
| Thread Type | NPSM / NPT Combination |
| Design | High Speed, Increased Flow, Less Drag |
Who This Is For
Boaters and marine technicians requiring a high-performance, durable thru-hull fitting for applications demanding increased water flow and reduced drag. This fitting is ideal for livewells, baitwells, and raw water intakes on performance-oriented vessels.
How It Compares
| Feature | GROCO 1-1/4" High Speed Thru-Hull w/Nut | Competitor |
|---|---|---|
| Material | C83600 Bronze | Bronze, Bronze |
| Thread Type | NPSM / NPT Combination | NPT, NPT |
| Design Focus | High Speed, Increased Flow, Less Drag | Standard, Standard |
| Size | 1-1/4" | 1-1/4", 1-1/4" |
Common Concerns Answered
Why is the price higher than basic thru-hull fittings?
The GROCO HSTH-1250-W is engineered for superior performance with a high-speed, low-drag design and constructed from premium C83600 bronze, justifying its elevated price point over standard, less specialized fittings. This advanced design directly contributes to improved vessel efficiency and system performance.
Are specific thread adapters needed for NPSM connections?
The NPSM/NPT combination thread is designed for broad compatibility, often eliminating the need for separate adapters. However, for niche applications, sourcing specific NPSM adapters might be required; consult your plumbing schematic for precise requirements.
Is installation complex for a DIYer?
This fitting requires basic plumbing knowledge and appropriate tools for proper sealing and tightening. While an experienced installer can expedite the process, following precise installation guidelines ensures a reliable and watertight seal for this performance-oriented component.
Frequently Asked Questions
What is the primary advantage of a high-speed thru-hull fitting?
The primary advantage is significantly increased water flow and reduced hydrodynamic drag at higher vessel speeds, optimizing the performance of systems like livewells and raw water intakes.
What type of threads does the GROCO HSTH-1250-W have?
The GROCO HSTH-1250-W features a versatile NPSM (National Pipe Straight Mechanical) and NPT (National Pipe Taper) combination thread.
What material is the GROCO HSTH-1250-W made from?
The GROCO HSTH-1250-W is constructed from C83600 Bronze, a high-tin, high-lead bronze alloy known for its excellent corrosion resistance in saltwater environments.
What is the recommended application for this thru-hull fitting?
This fitting is recommended for high-performance applications such as livewells, baitwells, and raw water intakes where maximizing water flow and minimizing drag are critical for optimal system operation on performance-oriented vessels.
Is this fitting suitable for saltwater environments?
Yes, the C83600 Bronze construction provides superior resistance to corrosion, making this fitting highly suitable for demanding saltwater marine environments.
