John Guest Reducer - 3/8" Stem x 1/4" Push Fit
MPN:
The John Guest Reducer with 3/8" Stem x 1/4" Push Fit is suitable for potable domestic a...
Stem Adapters
Browse reliable water filtration products, replacement cartridges and installation essentials selected for homes, businesses and specialist applications.
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John Guest 15mm Stem x 12mm Push Fit Reducer
MPN:
The John Guest 15mm Stem x 12mm Push Fit Reducer is suitable for potable domestic and co...
John Guest Reducer - 10mm Stem x 6mm Push Fit
MPN:
The John Guest Reducer with 10mm Stem x 6mm Push Fit is suitable for potable domestic an...
John Guest Stem Adapter - 3/8" Stem x 3/8" Male BSP
MPN:
The John Guest Stem Adapter - 3/8" Stem x 3/8" Male BSP thread is suitable for potable do...
Stem Adaptor 3/8" Stem x 3/4" Male BSP
MPN:
Stem Adaptor – 3/8″ Stem x 3/4″ Male BSP. Suitable for Everpure Claris filter head.
John Guest Reducer - 3/8" Stem x 5/16" Push Fit
MPN:
The John Guest Reducer with 3/8" Stem x 5/16" Push Fit is suitable for potable domestic ...
John Guest Reducer - 8mm Stem x 6mm Push Fit
MPN:
The John Guest Reducer with 8mm Stem x 6mm Push Fit is suitable for potable domestic and...
John Guest Stem to Stem Adapter - 15mm Stem x 3/8" Stem
MPN:
The John Guest Stem to Stem Adaptor with 15mm Stem x 3/8" Stem is suitable for potable do...
John Guest Reducer - 15mm Stem x 3/8" Push Fit
MPN:
The John Guest Reducer with 15mm Stem x 3/8" Push Fit is suitable for potable domestic an...
John Guest Reducer - 1/2" Stem x 3/8" Push Fit
MPN:
The John Guest Reducer with 1/2" Stem x 3/8" Push Fit is suitable for potable domestic a...
John Guest Stem Adaptor - 1/2" Stem x 15mm Push Fit
MPN:
The John Guest Stem Adaptor with 1/2" Stem x 15mm Push Fit is suitable for potable domes...
John Guest Stem Reducer - 5/16" Stem x 1/4" Push Fit
MPN:
The John Guest Reducer with 5/16" Stem x 1/4" Push Fit is suitable for potable domestic ...
John Guest Stem Adapter - 8mm Stem x 3/8" Male BSP
MPN:
The John Guest Stem Adapter with 8mm Stem x 3/8" Male BSP thread is suitable for potable ...
John Guest Stem Adapter - 3/8" Stem x 1/4" Male BSP
MPN:
The John Guest Stem Adapter - 3/8" Stem x 1/4" Male BSP thread is suitable for potable do...
John Guest Stem Adapter - 10mm Stem x 1/4" Male BSP
MPN:
The John Guest Stem Adapter with 10mm Stem x 1/4" Male BSP thread is suitable for potable...
John Guest Reducer - 5/16" Stem x 3/16" Push Fit
MPN:
The John Guest Reducer with 5/16" Stem x 3/16" Push Fit is suitable for potable domestic...
John Guest Stem Adaptor - 1/2" Stem x 1/2" Male BSPT
MPN:
The John Guest Stem Adaptor with 1/2" Stem x 1/2" Male BSPT is suitable for potable domes...
John Guest Reducer - 1/2" Stem x 5/16" Push Fit
MPN:
The John Guest Reducer with 1/2" Stem x 5/16" Push Fit is suitable for potable domestic ...
John Guest Stem Adapter - 3/8" Stem x 1/4" Male BSPT
MPN:
The John Guest Stem Adapter - 3/8" Stem x 1/4" Male BSP thread is suitable for potable do...
John Guest Stem Adapter - 12mm Stem x 3/8" Male BSP
MPN:
The John Guest Stem Adapter with 12mm Stem x 3/8" Male BSP thread is suitable for potable...
Need help choosing the right filter?
Our UK-based team can help match your appliance, system or application to the correct replacement or filtration setup.
How do I know which water filter fits my system?
Check the model reference on your current cartridge, appliance or system. If you are unsure, contact us with a photo and we will help identify the correct replacement.
Can businesses order in volume?
Yes. Trade and repeat-order customers can request support for volume pricing, scheduled replenishment and specification advice.