National Shower Spares
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Support Knowledge Base
Getting started with National Shower Spares
About National Shower Spares
Rated 'excellent' on Trustpilot
Website feedback and suggestions
Exploded part diagrams
Trade/Wholesale - nsswholesale.com
Accessing our Trade and Wholesale portal
Orders and Returns (showerspares.com)
How long does it take for you to process my return?
Product showing as discontinued?
Product code not listed?
Where is my order? How long will delivery take?
Cancelling an order
Lowest Price Guarantee
Disability VAT exemption
Creating an online account
I need a VAT invoice for my order. How do I obtain one?
Resetting your online account password
Orders and Returns (nsswholesale.com)
Finding your shower or part (including identification tips and support)
An Overview of Sirrus/Gummers Cartridges
Trevi Therm/Boost: Identification tips and an overview of operation
How can I tell if a part on your website will fit my shower?
Grohe Aquadimmer 47364 and 12433
Hansgrohe 92631000/92601000 cartridge identification
Common problems with mixer showers
Common problems with electric showers
Seasonal effects on electric showers
The importance of descaling your shower head
How does an electric shower 'thermal cut out switch (TCO)' work?
See all 13 articles
Buying a replacement shower
How to find a suitable shower hose
How to find a suitable shower head
How to find a suitable shower head holder
Our Top Picks of Eco Shower Heads!
How to find a suitable shower rail
See all 10 articles
Shower spares glossary
Video: What are the different types of showers?
What are Digital Showers?
Types of household water systems
Mixer showers: Manual or thermostatic?
What is a shower cartridge?
The Evoco - A New Luxurious Range From Mira!
Introducing the Mira Activate
Gainsborough Showers - New in 2022!
hansgrohe Jocolino Children's Handshower
Salamander TapBoost single outlet booster
See all 21 articles
Shower door rollers/runners
Official stockists of Daryl shower enclosure spares
Water running into the toilet pan
Manufacturer contact information
Reversed Inlet Cartridges
Mira - Guarantee Registration
Salamander - Guarantee Registration
How to replace a shower hose
How to replace a shower head holder
How to fit a universal shower head holder
How to change a pressure relief device (PRD)
Installation manuals and fitting guides
ERD shower height clearance and Mira short bar
Aqualisa Quartz Digital Concealed - Installation
Aqualisa Quartz Digital Exposed - Installation
Installing an Aqualisa Rail kit
Bristan - How to maintain & replace mini valves cartridge
Bristan - How to replace the Easitherm (00622415) shower cartridge in bar mixer showers
Bristan - How to replace the Easitherm (00622415) shower cartridge in exposed shower mixers
Bristan - How to replace the Thermotec (Cart5) shower cartridge
Bristan - How to service the 1500 series cartridge.
Bristan - How to service the 1850 series cartridge.
Changing a Grohe thermostatic cartridge (47439 000)
Grohe Cooltouch visualisation
Grohe Grohtherm bar valve temperature calibration
Grohtherm handle temperature setting
How to calibrate a thermostat on a Grohe Bar shower
How to fit a Grohe 46374000 cartridge
See all 15 articles
Geberit Aquaclean - Servicing
Geberit AquaClean - Cleaning maintenance
Installing a Geberit Type 212 Flush valve
Installing a Geberit Type 290 Flush valve
Installing a Type 240 Flush Valve
Hansgrohe - iBox concealed showering - How to correct installation depth tolerance issues
Hansgrohe - iBox concealed showering - How to correct hot and cold reverse supply pipes
Hansgrohe - iBox concealed showering - How to do a full service of the iBox thermostatic valve
How to fit a Uniblade Universal Screen Seal
How to fit the UniTrap
How to fit the UniWheel
How to adjust the temperature of a Mira Excel mixer shower (451.71 cartridge)
How to change a Mira Excel thermostatic cartridge (451.71)
How to fit the Mira Bar Valve Fixing Kit
How to install a Mira Excel EV Shower (2006-on)
How to install a Mira Mode Digital shower (Dual Rear Fed)
How to install the Mira Advance Electric Shower
See all 12 articles
Salamander Right Pump Installation Tips
How to Install a Salamander AccuBoost Accumulator
T80Z Fast-Fit electric shower - Cable and water entry points explained
Triton HOST Digital Shower - Installation
Triton T80Z Fast-Fit - Installation
Installing an SC50-T20 thermostatic cartridge
How to calibrate an Ultra/Hudson Reed twin shower
How to calibrate an Ultra/Hudson Reed Dual shower valve
Vado - Concealed shower valve - Maintenance & replacement of thermostatic cartridge (brass)
Vado - Concealed shower - 2 & 3 way diverter valve maintenance and replacement
Vado - Concealed shower valve - Maintenance & replacement of thermostatic cartridge (polymer)
Vado - Concealed shower - one way flow valve maintenance and replacement
Vado - exposed bar shower valve - Flow valve maintenance & replacement
Vado - exposed bar shower valve - Thermostatic cartridge maintenance & replacement
See all 11 articles