Works with 1.5" Tri-clamp. SpecsMaterial - 304 Stainless SteelFlange Outside Diameter: 1.984"Thread Connection: 1/2" Male NPTBore Inside Diameter: 0.575"Overall Length: 1.570"Stainless Steel Tri-clamp Fitting - 1/2" (Male)$9.99PriceQuantityAdd to Cart