Guides · Showers
Salamander CT75 Xtra review: a 2.0 bar positive-head twin, researched
A research-based Salamander CT75 Xtra review covering official specifications, installation limits, suitability and alternatives. We have not tested it.
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Research note: We haven't had or installed the CT75 Xtra. This review is based on Salamander's published product information and installation guide, not hands-on testing.
We haven't tested this. Figures are as the maker states them (checked 13 November 2026).
Our verdict
The UK-code CT75XTRA is the 2.0 bar step up from the CT50 Xtra. It boosts hot and cold water to one thermostatic shower in a positive-head, gravity-fed system. Salamander's current figures are 1.3 bar at 16 L/min, 1.7 bar at 8 L/min and 2.0 bar at closed head. That does not make it automatically better: the shower, cylinder, cistern, pipework and water storage must suit the extra flow.
Salamander CT75 Xtra, positive-head twin, 2.0 bar. The retailer page shows the current price; confirm the system and sizing first.
What it is
It is a twin-ended regenerative shower pump for a vented cylinder and cold-water cistern. It serves one thermostatic mixer shower and requires positive head: the outlet must already pass enough water naturally to trigger the pump. It is not a mains booster and is not for a combi or unvented cylinder.
Key specifications
Maker figures from the CT75 Xtra product page and CT installation guide, checked 14 November 2026.
| Specification | Salamander figure |
|---|---|
| Type/application | Twin, regenerative, positive head; one thermostatic shower |
| Pressure | 2.0 bar closed head; 1.7 bar at 8 L/min; 1.3 bar at 16 L/min |
| Minimum natural flow | 2 L/min from each outlet being pumped |
| Published noise | 53.5 dBA |
| Motor/electrical | Continuously rated AC induction; 230 V; 2.05 A; 484 W; 3 A fuse; 1.5 m cable |
| Maximum water temperature | 60°C |
| Connections | ¾-inch BSP; four 15 mm push-fit hoses, inlet hoses isolating |
| Size/weight | 185 × 120 × 160 mm excluding hoses; 3.9 kg |
| Protection/approval | IPX3; WRAS 250802702 |
| Warranty | 3 years, subject to the installation terms |
Installation and safety
This pump is only for a gravity-fed system and must not be connected directly to the mains. Salamander requires compliance with current water, electrical and building rules. The plug needs an accessible IET-compliant socket and must not use an extension lead or shared supply.
The CT guide requires adequate stored cold water, straight supplied hoses and an approved hot-water take-off. It specifies 227 litres (50 gallons) usable storage per bathroom and a 22 mm No-Stop Essex flange in the situations described in the guide. The water must not exceed 60°C. A shared or communal supply/cistern is prohibited, and installation outside the instructions can invalidate the warranty.
Use a qualified plumber and qualified electrician. This is not a DIY installation guide and not gas advice. See hiring a plumber and WRAS and water regulations.
Owner evidence
We did not find readable, model-specific owner reviews in the sources used for this page, so we have not invented an owner consensus. General reports about older CT50-family pumps are discussed, and clearly labelled, in our CT50 Xtra review; they are not CT75 Xtra evidence.
Pros and cons
Pros: compact; stronger published curve than the CT50 Xtra; continuously rated motor; four hoses and anti-vibration feet; three-year warranty.
Cons: positive head and one shower only; strict storage and pipework requirements; higher pressure is unsuitable if the shower or stored-water system cannot support it; published noise is a maker figure, not our test.
Who it suits — and who should skip it
It may suit one thermostatic shower on a positive-head gravity system where a plumber's sizing shows 2.0 bar is appropriate. Skip it for a combi, unvented cylinder, mains connection, negative head or multiple-outlet job. Read shower pump sizing before comparing bar ratings.
Alternatives
The CT50 Xtra is the 1.5 bar option for the same narrow application. The CT Force 30TU is a universal twin for positive- and negative-head gravity systems. Also see shower pumps compared, shower pump noise and mains booster pumps.
How we researched this
We read the current Salamander product page, the November 2025 CT installation guide and the Wickes listing on 14 November 2026. We have not owned, installed or tested this pump, and we did not use unreadable retailer reviews.
Sources
Salamander CT75 Xtra; CT installation guide; Wickes listing. Opened 14 November 2026.