Order JG Speedfit UG602B MDPE Copper Adaptor 25mm x 22mm at Screwfix.com. Screwfix customers rate this product 4.8/5. FREE next day delivery available, free collection in 1 minute.. 2. Buy a 20mm to 25mm MDPE adapter, buy a 25mm stopcock, buy a 25mm MDPE to 22mm copper adapter and use that setup (similar to option 1, but the 20mm to 25mm adapter is put before the stopcock rather than after) 3. Buy some 20mm MDPE, move the stopcock down 10cm and use a 20mm MDPE tee which I could then keep the original 20mm MDPE to copper in.

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JG Speedfit MDPE PE - Copper Coupler 25 x 15mm £14.56. ex. VAT £12.13 Each. JG Speedfit MDPE PE - Copper Coupler 25 x 22mm £9.96 was £11.28 ex. VAT £8.30 Each quantity Select from 2 variations. JG Speedfit MDPE Stop End 20mm £7.16. ex. VAT £5.97 Each quantity Select from 1 variation.. In this video I went from 32mm MDPE pipe down to 25MM and then in to 22mm copper using a brass stopcock. I wasn't totally sure about using a brass compressio.