SPECTRUM PTL-CB Twist Lock Carbon Block Replacement Filter

MPN

£32.99 inc. VAT

In stock Ready to dispatch
  • 6-month / 9,500 L life
  • 1.0 micron
  • 3.8 lpm
Choose your size
Calculating delivery...
FREE Express Delivery UK orders over £50
Next Day Delivery £5.99
Standard Delivery £2.99 for 2-3 days

*Applies when Next Day Delivery is selected at checkout.

Delivery information

Order before the delivery cut-off for the fastest available dispatch. Delivery options and final prices are confirmed at checkout.

Need another part? Browse valves, tubing and spare fittings Find compatible push-fit parts for your installation.

Need help choosing the right fitting?

Our size guide and fitting advice help you choose the right connection first time.

View Size Guide

The Filter Flair Correct Fit Promise

Not sure which fitting you need? Our experts are here to help you choose the right size and fitting for your system.

Learn more

What our customers say

4.6 out of 5 (14 reviews)

I found this company easy to deal with. They despatched my order promptly and it arrived on time and undamaged. I would deffinately use them again.
— Mr D Richardson

The SPECTRUM PTL-CB Twist Lock Carbon Block Replacement Filter replaces the carbon filters from your PTL-RO systems, offering outstanding performance with an ultra efficient 1-micron carbon block cartridge for effective contaminant and chlorine removal.

Compatible replacement for the Clearwater P6C1 Replacement Water Filter Cartridge.

Please note: The Spectrum PTL-CB is not compatible with the Harvey TwistLock filter.

Specifications

  • Technology: Twist Lock Carbon Block Cartridge
  • Material: Polypropylene/Coconut Activated Carbon
  • Performance: Chlorine, Taste & Odour
  • Micron: 1
  • Length: 10"
  • Diameter: 2.5"
  • Temperature Rating (°C): 38
  • Max Pressure (bar): 6.9
  • Flow Rate (lpm): 3.8
Product Details

The SPECTRUM PTL-CB Twist Lock Carbon Block Replacement Filter replaces the carbon filters from your PTL-RO systems, offering outstanding performance with an ultra efficient 1-micron carbon block cartridge for effective contaminant and chlorine removal.

Compatible replacement for the Clearwater P6C1 Replacement Water Filter Cartridge.

Please note: The Spectrum PTL-CB is not compatible with the Harvey TwistLock filter.

Specifications

  • Technology: Twist Lock Carbon Block Cartridge
  • Material: Polypropylene/Coconut Activated Carbon
  • Performance: Chlorine, Taste & Odour
  • Micron: 1
  • Length: 10"
  • Diameter: 2.5"
  • Temperature Rating (°C): 38
  • Max Pressure (bar): 6.9
  • Flow Rate (lpm): 3.8
Specifications
MPN
PTL-CB
Model code
PTL-CB-TWINPACK
Brand
SPECTRUM
Material
Polypropylene
Operating temperature
38°C
Operating pressure
6.9 Bar
Flow rate
3.8 lpm
Filter life
6 months or 9,500 litres, whichever comes first
Micron rating
1.0 micron
Installation

Follow the manufacturer’s installation guidance and check all connections before leaving the installation.

Delivery & Returns

Order before our dispatch cut-off — 3pm Monday to Friday, or 12pm on Saturday — and your order is sent the same day; anything after that follows the next working day. We don’t dispatch on Sundays, and you’ll get a tracking link by email as soon as your order is on its way.

Choose your UK delivery option at checkout:

  • Free Express Delivery — free on orders over £50 (2–3 working days).
  • Standard Delivery — £2.99 (2–3 working days).
  • Next Day Delivery — £5.99, arriving the next working day when you order before the cut-off.

We also ship internationally, with rates calculated at checkout.

Returns & refunds

Changed your mind? You have 30 days to return any unused filter in its original sealed packaging for a refund, or 90 days for exchanges. Start at our returns portal and either generate a prepaid Royal Mail label (£3.49, deducted from your refund) or use your own courier — exchanges are always free to return. We approve refunds within 24 hours of your return reaching us; your bank may then take 3–5 working days to show the funds.