Trevi A953957NU11 Temperature Adjustment Carrier Handle compatible with various Trevi thermostatic shower valves including Serenis, New Haven, Alchemy, Sandringham, and other models. This handle adapter is commonly used with the Trevi S960134NU thermostatic cartridge and may be paired with the grey plastic extender Trevi A963649NU MK2. Fits a wide range of built-in and exposed thermostatic valves such as Trevi Ascari dual and single control valves, Trevi Boost, Trevi CTV, Trevi Kurve, Trevi Outline A3700, Trevi Sottini Alchemy A5800, Trevi Therm Mk II, Trevi Traditional, and others. Designed for post-1997 Trevi thermostatic systems. Frequently Asked Questions: Question: I need a conversion kit with this temperature adjustment carrier. Answer: You may require the Trevi Boost to Therm Conversion Kit (E960739AA). Question: Will this work with an A6290AA shower? Answer: Yes, the A953957NU11 is compatible with the A6290AA shower valve. Question: I have an A3000 shower. I find it difficult to fit the temperature adjustment carrier. Answer: Ensure the front handle carrier is turned fully anti-clockwise before installing the A953957NU11. Compatible with a broad selection of Trevi thermostatic shower systems. Part of a comprehensive range of replacement components including shower door seals, seal kits, shower valve handles, and thermostatic cartridges.