15mm End Feed Equal Tee (Known as end Feed Fittings/Plumbing Fittings / 15mm Copper Pipe Fittings / 15mm Equal tee Also Available in 8mm, 10mm, 15mm, 22mm, 28mm, 35mm, 42mm and 54mm)

Flomasta Brass End Feed Equal Couplers 15mm 20 Pack

Duraplast UK 15mm Compression by 1/2" BSP Brass Male Iron Coupler (Pair), 15mm x 1/2" Adaptors