Hemispherical Tri-Clamp Reducers Hemispherical Sizes:4" X 2" Base is a professional grade

Base is a professional grade nutrient system

and backup memory retains your last speed setting through power interruptions

this adapter makes backyard refilling quick

and the matching Matrix Circulator

Hemispherical Tri-Clamp Reducers Hemispherical Sizes:4" X 2" Base is a professional gradeHemispherical Tri Clamp Tri Clover Reducers Hemispherical Tri Clamp reducers allow the user to connect differently sized Tri Clamp parts to each other without adding to the overall size of your extraction system. These reducers are offered in Tri clamp x Tri Clamp and Tri Clamp x Female NPT Specifications: Material: 304 Stainless Steel High Polish Interior Standard: 3A Connection Types : Tri Clamp x Tri Clamp and Tri Clamp x FNPT