The Attwood Stainless Steel Scupper Valve is a durable through-hull fitting designed for long-term corrosion resistance. Cast from 316 stainless steel with a polished mirror finish, this valve features thick sidewalls to withstand stress and hose flexing, providing a robust alternative to plastic fittings.
- Material: 316 stainless steel with neoprene rubber scupper flap
- Hose Size: 1-1/2 in. inner diameter
- Thread Specifications: 1-7/8 in. diameter; 1-1/2 in. NPSM
- Dimensions: 3 in. flange O.D., 3-1/2 in. thread length, 1-1/2 in. barb length, 5-1/2 in. total length
- Installation: Fits 2 in. hole saw size; accommodates up to 3 in. maximum hull thickness
- Features: Silicone gasket included; flange channel for sealant application; wrench flats for single-person installation
Note: These stainless steel through-hull connectors are designed for installation above the waterline only.
Product facts
- CT SKU
- CT-112367
- Model / MPN
- 66553-3
- UPC / GTIN
- 022697665539
- Package dimensions
- 3" X 3" X 6"
- Package weight
- 3.0 lb
- Specifications
- Hose Size = 1-1/4"\nMaterial = Stainless Steel
Fit-sensitive item: confirm measurements, model numbers, and manufacturer details before ordering. Tug & Tow does not guarantee universal compatibility from a product page alone.
Shipping & returns
Shipping & returns
Shipping methods, delivery estimates, and final costs appear at checkout before payment. Some bulky, supplier-shipped, or special-handling items may ship separately. See Shipping & Returns for return windows and eligibility.
Fit & compatibility
Fit & compatibility
Review the product title, description, images, dimensions, part numbers, and manufacturer details before purchase. For fit-sensitive items, confirm compatibility with your boat, RV, trailer, vehicle, or equipment.
Need help choosing?
Need help choosing?
Send us the product link or SKU, plus details about your boat, RV, trailer, vehicle, or project. We will help you narrow down the right option when product fit is not obvious.
