3" High Temp Straight Hose Coupler w/ Stops - Indmar

Keep your marine engine cooling and exhaust plumbing secure with this Indmar 3-inch high temperature straight hose coupler. Built for demanding inboard applications, this reinforced rubber coupling is designed to handle elevated heat while providing a tight, reliable connection between 3" hoses or pipes. Integrated hose stops (ribs) help prevent over-insertion and reduce the chance of the hose walking or slipping under pressure and vibration. A clearly marked FLOW arrow supports correct orientation during installation.

• Brand: Indmar
• Type: Straight hose coupler / connector
• Inside diameter: 3 in (fits 3" hose/pipe connections)
• Temperature: High-temp rated rubber construction (marine engine use)
• Design features: Multiple external ribs with built-in stops; directional FLOW marking
• Use cases: Marine engine plumbing, cooling lines, exhaust/water routing where high heat is present
• Color: Black exterior

FAQ
What do “stops” mean? The raised ribs act as insertion stops to help position the hoses correctly and improve retention when clamped.
Is this a reducer? No—this is a straight 3" coupler intended to connect same-size hoses.