3/8" - 5/8" White Insulated Copper Coil Line Set 16' Long - Flare Nut KIT- Seamless Pipe Tube for HVAC, Refrigerant - 3/8" Insulation Sheet Metal Fittings engineered for seamless 360-degree airflow

engineered for seamless 360-degree airflow in T-bar ceilings

designed to stop all types of fittings and terminate rectangular duct runs

4" X 12" Is The Size For The Duct Opening Measurement Only

Screws Included - Easy Unrestricted Air Flow For Your HVAC System

Design – This duct fitting is designed for transitioning oval wall stack ducting to round sheet metal pipe

3/8" - 5/8" White Insulated Copper Coil Line Set 16' Long - Flare Nut KIT- Seamless Pipe Tube for HVAC, Refrigerant - 3/8" Insulation Sheet Metal Fittings engineered for seamless 360-degree airflow+ Product Details Pipe tubing coil is made out of 99. 9% pure copper and meets ASTM B280 and C12200 standard Insulation is made of 1 2" Polypropylene and is UV Resistant, meets ASTM E 84, UL94, ASTM D1056 and ASTM G 21. Working temperature from 40 to 120 R value rating of insulation R3. 3 Insulation density is 30kgs cbm = 0. 035 w mk Pre flared ends with nuts are for simple and easy installation. Copper coil line set fits most ductless mini split air