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Window Cleaning & Car Detailing Commercial Water Filter Spot Free Rinse GT1-100

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Quick Overview
  • Commercial Car Detailing & Window Cleaning Water Filter
  • Spot Free Rinse - 0 TDS Water
  • More Effective than Reverse Osmosis & Distilled Water
  • TDS & EC monitoring with adjustable limits
  • Real Time Flow Rate Monitor + Flow Total Volume
  • Flow from 3 - 100 L/Min | Flow Total up to 999,999.9L
  • High Capacity 4 Kg (5.5L) Mixed Bed DI Resin
  • High Flow Coconut Carbon Pre-Filter
  • WaterMark Certified Housings - Stainless Steel Joiners
or 4 interest-free payments of $237.50
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Spot Free Rinse Commercial Water Filter

Superseding the old FSA “De-Min” Window Cleaning Kit, the GT1-100 Car Detailing System will remove TDS from water, providing De-Ionised Water.

DI water is sought after for several uses due to its 0-mineral content. The most common use is for spot free window cleaning and car detailing.

0 TDS water will provide a Spot Free Rinse for cars and windows as there are no residuals in the water after the water evaporates. Having a Spot Free Rinse will eliminate the need to use a squeegee or chamois to remove excess water from a surface to avoid scale marks and staining.

Our system uses a 3-stage design, with a 10” x 4.5” Coconut Carbon Pre-filter, and 2x DI Cartridges. The Pre-Filter will provide Chlorine free water for 45,000L @ 7.5L/Min and is capable of a peak flow rate that covers all types of Pressure cleaners up over 20L/Min

The inlet of the system is a 1” BSP female Port making adaptation simple and quick. This allows the system to be used in a permanent fixed location for car detailers or car washes, or in a portable scenario on a trolley, using hose fittings to connect.

The inbuilt TDS monitor eliminates the guess work from operating the system. It provides on time, on demand read outs of the outgoing TDS of the system. It can be set to different TDS levels and has an audible alarm to notify the user when the TDS increases passed the desired level.

Having an inline TDS meter affixed to the system can increase the yield of the DI resin as you can adjust the flow rate nearing the end of the DI life and still produce 0TDS water by determining a critical flow rate.

The Water that is produced by this system is in most cases better than commercially produced distilled water and even better than reverse osmosis which will retain a residual mineral content after filtration.

With DI water, the lower the flow rate the better. For this reason, when a Spot Free Rinse is required, we recommend limiting the flow rate to 7L/Min or less which matches the minimum flow rate of common pressure cleaners such as Gerni’s.

DI Resin is available in our store by the bag (25L / 18.75Kg)

Kit Contains

  • 10" x 4.5" 100% Coconut Carbon Pre-Filter 5 Micron - Upgrade option of 20" x 4.5" Housing and Pre-Filter
  • 20" x 4.5" De Ionising Resin Cartridge x2 (4.2Kg Resin in Total)
  • Heavy Duty Powder Coated Steel Bracket
  • 2x Working Pressure Gauges
  • Inline Combined TDS/EC Monitor & Flow Meter
  • Opening Wrench


  • High Flow 3/8” Lines – Suitable for use with pressure washers
  • Spot Free Rinse 0 TDS Water
  • Removes salts, minerals and hardness from water.
  • High Capacity Resin – 4Kg = 5.5L Of Resin
  • Pre-Carbon filter removes Chlorine & Chemicals
  • Available with 1" BSP or Garden Hose Connections
  • 316 Stainless Steel Centre Joiners



Width: 680mm (Including Tubing from TDS Meter as Shown in photo)
Height: 670mm
Depth: 250mm

Max Pressure: 500 kPa (70 psi)
Max Flow: 20L/Min*
Rinse Flow: 7L/Min

Inlet: 1” BSP (Available With Garden Hose Fitting)
Outlet: 1” BPS (Available with Garden Hose Fitting)

Pre-Filter Service Life: 45,000L or 12 Months - Upgrade option available.
DI Service Life: Variable depending on incoming water quality
DI Volume: 4Kg – 5.5L (2Kg – 2.75L Per Cartridge)

Cartridge Size
Pre-Filter: 10” x 4.5” - Upgrade option of 20" x 4.5"
DI Filters: 20” x 4.5”

Certification: WaterMark Certified Housings

Due to the nature of the products we sell, a strict return policy is in place. We work with food grade certified materials that must be un-opened and un-used as to be able to be re-sold.

You will receive a credit of equal amount, less the postage cost to send it to you. 

  • Wrongly purchased items may be returned for a merchandise credit, this applies for but not limited to: Wrong size, wrong system etc.
  • 30 Day return Policy: We will accept returns up to 30 days after the initial purchase, all orders should be checked immediately for damage/fault upon arrival to aid us with the return process.
  • Return shipping is to be paid by the buyer to the address provided
  • Should the item appear faulty or doesn’t work how described, the unit/item must be returned for testing (if requested), the return postage paid by the buyer. If the unit/item is deemed to be faulty, compensation will be provided for the postage cost. If the unit/item is deemed to be in working order and as described, the buyer will need to pay for return postage. 

If you have any questions about our return policy, please contact us before purchase. This will also help to ensure you purchase the correct product that suits your requirements.

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