SKU: 19271653374

Attwood Stainless Steel Scupper Valve Barbed - 1-1/2" Hose Size [66553-3]

Sale price$66.56 Regular price$73.95
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Description

Attwood Stainless Steel Scupper Valve Barbed - 1-1/2" Hose Size [66553-3]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

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

Specifications:

  • 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

Specifications:

  • Hose Size: 1-1/4"
  • Material: Stainless Steel
  • Box Dimensions: 3"H x 3"W x 6"L WT: 3 lbs
  • UPC: 022697665539

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Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 19271653374

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4.7 ★★★★★
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R
Verified Purchase
Roseanna Boyce
Pawtucket, US
★★★★★ 5
Delivers a quieter ride
Size: 36 sqft
This works very well to put down road noise. The difference was immediate in my van. I was shocked it made such a difference.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026
J
Verified Purchase
JC
Boise, US
★★★★★ 4
Reasonably priced sound deadening
Size: 18 sqft
Easy to cut with a carpet knife. I used a heatgun to make it stickier and more moldable. The foil isn't so thick that you risk cutting yourself like some Dynamat variants.
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Reviewed in the United States on March 12, 2026
D
Verified Purchase
David
Houston, US
★★★★★ 5
Works for me
Size: 36 sqft
Sticky so don’t let it touch you or each other but it comes off and works fine.
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Reviewed in the United States on June 7, 2026
A
Verified Purchase
Amazon Customer
Los Angeles, US
★★★★★ 5
Xxxxxx
Size: 36 sqft
Great
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Reviewed in the United States on June 11, 2026
E
Verified Purchase
eff me
Waukegan, US
★★★★★ 3
great for what im doing. maybe not as good in a vehicle though
Size: 36 sqft
decent product. not as thick as typical sound deadening but definitely cheaper. and for my application, i didnt need a name brand thicker material. i am putting it on our heat and ac vent and intake pipes during our remodel. sound travels from room to room in our old house through these vents and pipes so a little sound deadening goes a long way
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026

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