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0.89MTR HOSE UPGRADE KIT  4CYL

0.89MTR HOSE UPGRADE KIT 4CYL

Fitch First

£38

4 cylinder OPSO upgrade kit brought to you by the Calor Essentials range. Comes complete with 2 hoses and 'T' pieces, and made for use when upgrading from a 2 cylinder system to 4 cylinders. 2 x 0.5m W20 x POL pigtails. Must only be used with changeover valves that have OPSO.

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Where this comes from

The part other shops don't tell you. Three separate questions, kept separate on purpose, each with its source.