Works with 1.5" Tri-clamp. SpecsMaterial: 304 Stainless SteelFlange Outside Diameter: 1.984"Thread Connection: 1/2" Female NPTBore Inside Diameter: 0.705"Overall Length: 1.655"Stainless Steel Tri-clamp Fitting - 1/2" (Female)$14.90PriceQuantityAdd to Cart