Buck Algonquin Bronze 90° Pipe/Hose Adapter 2-1/2"

Buck Algonquin Bronze 90° Pipe/Hose Adapter — 2-1/2"

A heavy-duty 90° elbow adapter for large-bore marine plumbing applications. This 2-1/2" fitting connects a 2-1/2" NPT pipe-threaded valve or through-hull to a 2-1/2" hose, turning the hose run 90° off the fitting — essential when a straight exit isn’t possible due to engine placement, hull geometry, or nearby structure.

At 2-1/2", this is a specialist fitting most commonly used in wet exhaust systems on inboard diesel engines, large raw water intakes, and major cockpit or bilge drain installations. Cast from naval bronze for long-term corrosion and heat resistance in demanding marine environments.

Specifications

• Pipe thread (valve/hull side): 2-1/2" NPT
• Hose barb (hose side): 2-1/2"
• Angle: 90° elbow
• Material: Naval bronze
• Application: Large-bore right-angle pipe-to-hose transition
• Part Number: BUC-HN-250-E

Best For

• Wet exhaust elbow connections on inboard diesel and petrol engines
• Large raw water intake plumbing on commercial and larger recreational vessels
• Major cockpit and bilge drain systems requiring high flow capacity
• Installations where the hose must exit at 90° due to engine room layout or hull geometry
• Replacement of corroded or failing large-bore exhaust and drain elbows

Related Buck Algonquin Plumbing

• Pipe/Hose Adapter 2-1/2" Bronze (Straight) — straight version of this fitting
• Through-Hull 1-1/4" Long Bronze — large through-hull option
• Through-Hull 1" Bronze — mid-size through-hull option
• Pipe/Hose Adapter 3/4" Bronze 90° Elbow — smaller elbow adapter
• Pipe/Hose Adapter 3/4" Bronze Straight — smaller straight adapter

Parts Desk Insights

Best use case: The 2-1/2" elbow is a specialist fitting — the primary application is wet exhaust plumbing on inboard diesel engines, where the exhaust hose needs to exit the engine room at a right angle to reach the through-hull. It’s also used on large raw water intakes and major drain systems on commercial and larger cruising vessels. At this price point, customers are making a deliberate, planned purchase — confirm the pipe thread size, hose ID, and required angle before ordering. If the customer’s hose exits straight, they need the straight 2-1/2" adapter instead of this elbow. Bronze is the correct material for exhaust and raw water applications — it handles both the corrosive environment and the heat of wet exhaust systems better than plastic alternatives.