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Attwood Stainless Steel Scupper Valve Barbed – 1-1/2″ Hose Size

Attwood Stainless Steel Scupper Valve Barbed – 1-1/2″ Hose Size

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stainless steel scupper valve barbed – 1-1/2″ hose size

polish your image with these beautiful, durable stainless steel fittings. Why specify plastic parts when these fittings will last the life of the boat?

rugged stainless construction:

  • cast from certified enhanced 316 stainless steel alloy for strength and lifetime corrosion-resistance
  • all visible areas are polished to a mirror finish, then passivate each part for additional protection
  • thick steel sidewalls withstand continual stress and hose flexing

faster, simpler installation:

  • each scupper valve is available with a new silicone gasket
  • a channel under the flange holds a bead of sealant, making it easier to apply a trouble-free seal
  • all models have wrench flats or an end notch to hold as a gripping surface; one installer can tighten all connections from inside the hull
  • the barbed tail ends provide plenty of room to hold multiple clamps

stainless steel scupper valves, barbed:

  • the scupper flap is tough neoprene rubber with a molded v that fits into the grooved body to reduce backwash
  • fasteners are concealed and corrosion-proof


  • hose size: (inch) 1-1/2″ inner diameter
  • thread diameter: (inch) 1-7/8″ 
  • flange o.d. (outside diameter): (inch) 3″
  • thread length: (inch) 3-1/2″
  • barb length: (inch) 1-1/2″
  • total length: (inch) 5-1/2″
  • install hole saw size: (inch) 2″ 
  • thread npsm: (inch) 1-1/2″
  • max hull thickness: (inch) 3″

*stainless steel thru-hull connectors are designed for installation above the water line only

Additional information

Weight 3.0000 lbs
Dimensions 6.00 × 3.00 × 3.00 in





Attwood Marine


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