Marine fitting for bilge and deck drainage that promises secure hose connections and a corrosion-resistant finish. JT-HLM Boat Thru Hull Connector combines a polypropylene body with a mirror-polished 316 stainless-steel trim cover and a 90 degree elbow for easier hose routing. Is the 3/4 inch (19mm) sizing and above-deck installation the right match for your boat?
⚡ At a Glance
- • Corrosion Resistance: Mirror-polished 316 stainless-steel flange resists saltwater corrosion, polypropylene body adds durability
- • Best for: Boats, yachts, caravans and vehicles needing above-deck bilge or scupper outlets
- • Not ideal for: Use below the waterline or where a watertight through-hull below-deck seal is required
90 degree nylon elbow suits 3/4 inch (19mm) hose connections for bilge pumps and scuppers. Not recommended for below-waterline installations.
Corrosion-resistant trim – with mirror-polished 316 stainless-steel flange
316 stainless steel offers high resistance to pitting and rust in marine environments, and a mirror polish reduces crevice areas where salt can collect. The flange design presents a smooth face that helps limit trapped moisture.
Durable trim keeps the outlet looking neat while extending service life in saltwater conditions.
Easier hose routing in tight spaces – thanks to the 90-degree nylon elbow
A 90 degree elbow redirects flow so hoses can be routed around obstructions without sharp bends. Polypropylene construction maintains shape and resists deformation under strain.
Simplifies installation in cramped locations and lowers the risk of hose kinks that can impede pump performance.
Simple compatibility check – with a 3/4 inch (19mm) outlet
Outer diameter specified as 3/4 inch (19mm), intended to match common bilge and scupper hose sizes of the same nominal diameter. Size confirmation helps avoid the need for adapters.
Ensures straightforward hose connection for many standard bilge pump installations, saving time during fitment.
✨ The 4 Key Reasons for JT-HLM Boat Thru Hull Connector
- Mirror-polished 316 stainless trim – Keeps deck fittings looking smart and resists corrosion
- Durable polypropylene body – Withstands marine wear while remaining lightweight and stable
- 90-degree elbow design – Allows neat hose routing in cramped or awkward spaces
- 3/4 inch (19mm) outlet size – Fits common bilge hoses without extra adaptors needed
📋 Technical Details at a Glance
- Category: Marine fitting / boat thru-hull connector
- Brand: JT-HLM
- Material (body): Polypropylene
- Flange material: 316 stainless steel, mirror-polished
- Orientation: 90 degree elbow
❓ Frequently Asked Questions
Q: Can this be used below the waterline?
A: No, not recommended for use below the waterline; the description specifies above-deck or exhaust port applications only.
Q: What hose size fits the outlet?
A: The outer diameter is 3/4 inch (19mm), so confirm the connecting hose matches that nominal size before fitting.
Q: What materials are used and are they corrosion resistant?
A: The body is polypropylene and the flange is mirror-polished 316 stainless steel, which the description highlights for excellent corrosion resistance.
🏆 Our Verdict
Suitable for boat owners, yacht fitters and caravan or vehicle users who need an above-deck bilge or scupper outlet with straightforward hose routing. Durability and a mirror-polished 316 stainless-steel trim combined with a 90 degree elbow make for reliable, neat installations. Durable construction and corrosion-resistant materials suggest sensible long-term value for regular marine use.
