The pipes are 150 mm apart on most horizontal bar mixers ( but not all are ).
If yours are ,then you have quite a lot to choose from. Starting around 60 quid . tool station and screwfix stock several.
If your hot water is from a combi / pressurised or pumped from a cylinder they all work quite well.Tritons range are all OK ,but a bit more money.
Not really that much difference in performance ,or longevity in my opinion. Those that look fancier ,or come with nicer looking riser rails/ soap dishes etc cost more .
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