Lswteiz 4" x 2" PVC Increaser/Reducer Coupling Adapter (Socket Socket) Schedule 40 Slip Reducing Pipe Fittings for Home Sewer Plumbing

【4" to 2" PVC Reducer】Reducer coupling for connecting and extending two eccentric pipes of different diameters; Fit 4" I.D. / 4.50" O.D. to 2" I.D. / 2.374" O.D. PVC pipe；ideal for center connections. 【Material】Heavy Duty PVC Reducer Coupling made of high-quality PVC, high-impact strength, resistant to frost and corrosion, long service life; Smooth interior finish for reduced friction and material buildup. They are non-toxic, lightweight and easy to install. Installation requires the use of primer and solvent cement. 【Efficient Reducing Design】In high flow systems, the transition between small and large pipe diameters reduces abrupt changes in fluid pressure, preventing sudden changes in flow velocity from causing water hammer. 【Wide Application】Furniture-Grade Parts, DWV/SCH40 pipe to select drainage products such as channel drain outlets, drainage grates, and pop-up emitters, suitable for indoor and outdoor use; Pressure Fittings are used in irrigation, underground sprinkler systems, swim pools, outdoor applications and cold water supply lines, etc. 【Use with Confidence】Meets ASTM D2466 and D1784 standards, comply with NSF requirement.