Salamander Twin Impeller Pumps - Over 2.0 Bar

A higher bar rating gives you noticeably more water force; our range explains you'll see a large increase once you fit a 2.0 bar or above pump. A 2.2 bar unit (the RP75TU) will often be enough to turn a weak trickle into a comfortable shower, 2.6 bar models (like the CT80B) give a stronger, more invigorating spray, and 3.0 bar pumps deliver the most powerful flow suitable for power showers or busier bathrooms. Match the bar level to how strong you want the shower and how many outlets you'll run at once.

Centrifugal pumps are generally better at providing steady, higher flow across several outlets, so they're a good fit if you want to boost a whole house or multiple bathrooms. Regenerative pumps excel at creating high pressure at lower flow rates and are often used for single showers; they tend to be more compact. If you need consistent flow for more than one outlet pick centrifugal, while regenerative is a sensible choice if you only want to power one strong shower.

Yes, twin impeller pumps boost both the hot and cold supplies equally, which is exactly what mixer and thermostatic showers need to function correctly. That equal boosting helps the valve maintain the correct temperature and balance, so you'll get a stronger, more stable spray from your mixer setup. For a busy bathroom with several fittings, consider a higher-output model to keep balance when other taps are used.

Brass construction gives you greater corrosion resistance and durability, making it a wise choice for heavy use or whole-house pumps. Plastic-bodied pumps are lighter and typically more affordable, and they perform well for single-shower boosts where cost and weight matter. If longevity and robustness matter to you, opt for brass; if the pump's for an occasional or single outlet boost, a quality plastic model can be perfectly adequate.

Some models in the range are designed specifically for shower-only use while others are suitable for shower and house boosting, the RP100PT is described as a 3.0 bar "shower and house pump,". If you want to supply multiple bathrooms or taps at once, choose a higher-output centrifugal unit around 3.0 bar; for a single shower, a 2.2–2.6 bar regenerative or smaller centrifugal model will usually be fine. Match the pump's bar rating and type to how many outlets you'll run simultaneously.