HFS (R) 4" Sanitary Tri Clamp to 2 x 1/4" NPT Female Tri Clover Go to amazon.com Related posts Top 10 best tri clamp 4 2022 FeatureFits Tri-Clamp: 4"Material: SAE 304 Stainless Steel2 x 1/4" NPT PortIncludes Shower Head DescriptionFits Tri-Clamp: 4" Material: SAE 304 Stainless Steel 2 x 1/4" NPT PortIncludes Shower Head